Blood-vessels Sentence Examples

Under the influence of cold, the blood-vessels contract, and less blood is conveyed to the tissues.

Absorption of this infarcted zone is carried on by means of leucocytes and other phagocytic cells, and by new blood-vessels.

The polymorpho-nuclear leucocytes are seen in great numbers in the blood vessels.

Leber experimented with several chemical compounds to find what reaction they had on these cells; by using fine glass tubes sealed at the outer end and containing a chemical substance, and by introducing the open end into the blood vessels he found that the leucocytes were attracted - positive chemiotaxis - by the various compounds of mercury, copper, turpentin, and other substances.

As early as six hours after the injury the polymorpho-nuclear leucocytes are seen passing in large numbers from the dilated and congested blood vessels of the tissues at the margin of the wound into the injured zone, where they carry on an active phagocytosis.

An impulse is communicated to the blood vessels in accordance with this demand, and a greater or smaller outflow is the result.

The undiscriminating diseases, on the other hand, we suspect not to be primarily of nervous origin, but to depend rather on the agency of other constituent tissues of this system, as of the blood-vessels or the connective elements.

Griesinger (1817-1868), Bevan Lewis - and in the separation from insanity due to primary disease or defect of nerve elements of such diseases as general paralysis of the insane, which probably arise, as we have said, by the action of poisons on contiguous structures - such as blood-vessels and connective elements - and invade the nervous matter secondarily.

The latter are almost invariably swallowed by their host in an immature state with its food, and from the stomach or intestine they work their way into the lungs, liver, body-cavity or blood vessels.

They are usually found in the alimentary canal or its appendages but occasionally work their way into the serous cavities, nervous system and blood vessels.

Occasionally the fluke migrates into the blood vessels and may reach the lungs, kidneys, urethra and bladder.

In small blood-vessels pressure will be sufficient to arrest haemorrhage permanently.

The venom is generally introduced into the subcutaneous tissue, whence it reaches the general circulation by absorption through the lymph and blood-vessels.

Given internally in small quantities and in sufficient dilution, alcohol causes dilatation of;he gastric blood-vessels, increased secretion of gastric juice, and greater activity in the movements of the muscular layers in the wall of the stomach.

As it dilates the blood-vessels of the skin it increases the subjective sensation of warmth.

Inasmuch as the stone is blocking the duct, the bile is unable to flow into the intestine; so, being absorbed by the blood-vessels, it gives rise to jaundice.

The system of blood-vessels is entirely separate from the coelomic cavities.

After a few minutes the salivation is arrested owing to the constricting influence of the drug upon the blood-vessels that supply the glands.

The muscular wall of the blood-vessels also exhibits tonic contraction, which, however, seems to be mainly traceable to a continual excitation of the muscle cells by nervous influence conveyed to them along their nerves, and originating in the great vaso motor centre in the bulb.

But whilst the characteristic action of atropine is to dilate the blood-vessels, its first action is to stimulate the vaso-motor centre - thereby causing temporary contraction of the vessels - and to increase the rapidity of the heart's action, so that the blood-pressure rapidly rises.

The primary and secondary bars which separate and divide the successive gill-clefts from one another are traversed by blood-vessels which run from a simple tubular contractile ventral branchial vessel along the bars into a dorsal aorta.

Soon afterwards there is an accumulation under the epidermis of a serum derived from the dilated blood-vessels.

The thyroid gland, which is situated in front of the neck, yields a secretion which passes into the blood and there tends to maintain a state of moderate dilatation in the blood-vessels and of oxidization in the tissues, so that the circulation remains good and the body-heat and muscular activity remain well maintained.

When this continues for a length of time it tends by itself to cause deterioration of the blood-vessels and leads to death either by cerebral apoplexy or by cardiac failure.

The tension within the blood-vessels is generally high, and the patients run a risk of anginal attacks or of apoplexy.

Probably the lining endothelium of the blood-vessels as well as other tissues of the body participate in the production of anti-substances.

A large space around the greatly developed callosities on the buttocks, as well as the upper part of the insides of the thighs, is naked and of a crimson colour, shading off on the sides to lilac or blue, which, depending upon injection of the superficial blood-vessels, varies in intensity according to the condition of the animal - increasing under excitement, fading during sickness, and disappearing after death.

Heart and blood-vessels are entirely absent; the blood is contained in sinuses which have no distinct walls or endothelial lining, and the principal of which are the perianal, the pedal, the visceral and the pallial.

The pedicles are always covered with skin well supplied with blood-vessels; and in young deer, or those in which the antlers have been comparatively recently shed, the covering of skin extends over their summits, when they appear as longer or shorter projections on the forehead, according to the species.

All this time the growing antler is invested with a skin clothed with exceedingly fine short hairs, and is most liberally supplied with blood-vessels; this sensitive skin being called the velvet.

Towards the completion of its growth a more or less prominent ring of bone, termed the burr or coronet, is deposited at its base just above the junction with the pedicle; this ring tending to constrict the blood-vessels, and thus cut off the supply of blood from the antlers...

Hence quinine stops the process of diapedesis or emigration of the leucocytes from the blood-vessels into the tissues, and if applied to the, extravascular spaces it arrests the leucocytic movements there.

So far is it from being an haemostatic that, if perfused through living blood-vessels, it actually dilates them.

The important actions of ergot are on the blood-vessels and the uterus.

Tracheae are abundant just in proportion as blood-vessels become suppressed.

In large doses oil of turpentine causes purging and may induce much haemorrhage from the bowel; it should be combined with some trustworthy aperient, such as castor oil, when given as an anthelmintic. It is readily absorbed unchanged and has a marked contractile action upon the blood vessels.

Small doses of any of them dilate the blood vessels from an action on the vaso-motor centre in the medulla oblongata, as a result of which the heart beats more rapidly and the blood circulates more freely; but larger doses have a general depressing effect upon the circulatory system.

These consist chiefly in an action upon non-striped muscle, vasomotor centres, blood vessels and the blood.

Their action is exerted upon muscle, and chiefly upon the muscle of the heart and blood vessels.

A cerebral angiogram is a study of the blood vessels in the brain.

A renal angiogram helps to diagnose narrowed blood vessels to the kidney.

One defect a fluorescein angiogram test may reveal are abnormal blood vessels which leak blood into the surrounding tissues.

Symptoms include a swollen, painful ankle with possible bruising due to ruptured blood vessels.

Branching of the blood vessels can be glimpsed to the lower right where two smaller arterioles join the larger vessel.

The bacteria were shown to spread via the bloodstream from the mouth to the major blood vessels where they caused accelerated atherosclerosis.

Eg captopril, losartan - Calcium channel blockers or alpha blockers, which help widen your blood vessels.

Other patients need laser surgery to remove dilated blood vessels.

Abnormal clotting tendencies of the blood and/or blocked blood vessels.

Cyclic GMP causes the blood vessels in the penis to widen by relaxing a thin layer of muscle found in the blood vessel walls.

The condition is caused by blood vessels growing into the vitreous, which is followed later by fibrosis.

Ultrasound can seal ruptured blood vessels deep within the body without the need for risky surgery.

This involves removing part of the brain in more severe cases in the region of the abnormal blood vessels.

Prolonged applications of cold water contract the tiny blood vessels and thus the amount of blood in the part is lessened.

The leaky blood vessels pour out protein rich exudate which causes swelling.

The skin contains a network of small blood vessels with tiny muscles in their walls.

The resulting mice showed an increased number of blood vessels in the skin, suggesting that AGF does indeed promote blood vessel formation.

Cyclic GMP causes the blood vessels in the penis to widen by relaxing a thin layer of muscle found in the blood vessels in the penis to widen by relaxing a thin layer of muscle found in the blood vessel walls.

The pressure is great enough on prominent parts of body to restrict circulation in small service blood vessels.

In some cases compression of blood vessels may also occur producing signs of poor peripheral circulation.

It is thought to work by causing constriction of the cerebral blood vessels.

By stopping this enzyme working, ACE inhibitors reduce the constriction of the blood vessels.

This drug opens up -- dilates - the small blood vessels to relieve constrictions.

Recent research has shown that dilation of the blood vessels in the brain relates to nitric oxide.

Some of the blood vessels have collapsed post mortem and the gut lumen is often distended with gas.

A large pulmonary embolus which blocks the main blood vessels to the lungs will be fatal.

Zebrafish embryos with a mutation called gridlock show faulty development of blood vessels in the lower portion of the body.

Without cGMP present, the blood vessels tighten again, blood is forced out of the penis and the erection becomes flaccid.

Local necrosis is mainly ischaemic as thrombosis blocks the local blood vessels and causes dry gangrene.

The lobes of the cerebral hemisphere, optic nerves, arachnoid granulations and blood vessels are all identified.

The patient was lightly hypnotized and told that he could learn to control the blood vessels in his face.

Damage to blood vessels may cause inflammation, but may simply make blood vessels leaky.

They are used to treat trigeminal neuralgia, a very painful condition in which blood vessels press on nerves.

High blood pressure can weaken the blood vessels as well, although most people with high blood pressure never have a nosebleed.

Exudate - the fluid plasma which leaks out of blood vessels due to an increase in capillary permeability.

The laser isn't used on the blood vessels directly, but is scattered over the whole retina (pan retinal photocoagulation ).

He was especially acknowledged for the discovery of a protective factor, which he called prostacyclin, which helps to keep blood vessels healthy.

Bleeding from tiny blood vessels in the skin may produce small purplish spots (called purpura) on the legs.

In some cases the blood vessels might not go through the initial shutdown phase but dilate excessively and cause this intense redness and burning.

This reduces the deposition of fats on the walls of the arteries, reducing clotting of blood vessels and the heart.

In the blood vessels of the kidney, are cells which secrete the hormone renin.

Medical treatments In treating advanced retinopathy, doctors may use laser surgery to shrink abnormal blood vessels at the back of the eye.

Proliferative retinopathy At this stage, some of the tiny blood vessels in the retina become blocked.

In urinary schistosomiasis, they live in the blood vessels of the bladder.

In the case of intestinal schistosomiasis, the worms reside in the blood vessels lining the intestine.

This has been accompanied by the conversion of the lamelliform gill-plates into lamelliform lung-plates, and later the development from the lung-chambers, and at independent sites, of tracheae or air-tubes (by adaptation of the vasifactive tissue of the blood-vessels) similar to those independently developed in A B FIG.

The phagocytes are attracted from the blood vessels and elsewhere towards the noxious focus by the chemiotaxis exerted upon them by the toxins secreted by the bacteria contained within it.

Among diseases not primarily nervous, but exhibited in certain phenomena of nervous disorder, are diseases of the blood-vessels.

Transfusion of blood directly from the vein of a healthy person to the blood-vessels of the patient, and infusion of saline solution into a vein, may be practised (see Shock).

The circulation in the brain may be lessened by warmth to the feet, cold to the head, warm food in the stomach, warm poultices or compresses to the abdomen, antipyretics, which reduce the temperature and consequently slow the beats of the heart in fever, and cardiac or vascular tonics, which slow the heart and tend to restore tone to the blood-vessels, so that the circulation in the brain may be more efficiently regulated.

The changes produced at a distance by distribution of toxins may be very manifold - cloudy swelling and fatty degeneration, serous effusions, capillary haemorrhages, various degenerations of muscle, hyaline degeneration of small blood-vessels, and, in certain chronic diseases, waxy degeneration, all of which may be widespread, are examples of the effects of toxins, rapid or slow in action.

You here see perchance how blood-vessels are formed.

Thinning of the skin and prominent blood vessels are the most common side effects.

The platelet phase is central to thrombus formation inside blood vessels.

The effect that vasoactive agents have on blood vessels in different tumors is being determined in ' window chamber ' experiments.

Potential for the Twin-Twin Transfusion Syndrome where the shared placenta contains abnormal blood vessels affecting the babies' ability to get necessary resources from the mother.

No. A port wine stain is a birthmark created by malformed and dilated blood vessels.

Your cat's constant scratching may cause bleeding or broken blood vessels.

During the act, the laser serves to seal the small blood vessels that would otherwise bleed out, sometimes profusely.

Garlic extract was shown to inhibit the calcification of blood vessels in humans.

Vitamin B helps the body metabolize the alcohol and also dilates the blood vessels.

Coffee - Two cups of coffee will help relieve your headache because it is a vasoconstrictor - it reduces the swelling of your blood vessels that causes the throbbing pain.

Cayenne is naturally high in sulfur compounds that the body uses to create hydrogen sulfide in the lining of the blood vessels via an enzyme called CSE (cystathionine gamma-lyase).

Because of this, many researchers theorize that migraines are caused by an overabundance of naturally occurring brain substances that that cause blood vessels to swell and press on nerves in the head.

The supplement is an alkaloid that works by controlling the nerves that operate the heart and blood vessels.

Ginkgo has an effect on the blood vessels and increases both circulation and oxygen to the cells of the body.

During this state, heart rate increases and blood vessels dilate in muscles and constrict everywhere else; the body is on high alert.

The tiny blood vessels that sit just below the skin's surface are able to absorb substances applied to your skin and transport them to the rest of your body.

The body tries to conserve heat by constricting blood vessels so that the brain and major organs remain supplied with nutrient-rich blood.

Sickle cell disease is a blood disorder in which the blood cells cannot carry oxygen to the brain because the blood vessels to the brain are either narrowed or closed.

One rare cause of stroke is an extreme case of the chickenpox virus, which causes a narrowing of blood vessels in the head for some children.

In a neurosonogram, ultra high frequency sound waves are used to analyze blood flow and possible blockages in the blood vessels in or leading to the brain.

Ischemia-A decrease in the blood supply to an area of the body caused by obstruction or constriction of blood vessels.

Platelets are tiny colorless disc-shaped cells in the blood that collect (aggregate) in blood vessels to form a plug when a vessel is injured.

A heart murmur is an abnormal swishing or whooshing sound made by blood moving through the heart, heart valves, or blood vessels near the heart during the heartbeat cycle.

Innocent heart murmurs are caused by blood flowing faster than normal through the chambers and valves of the heart or the blood vessels near the heart.

Sarcoma is cancer of supporting tissue such as bone, muscle, and blood vessels.

In addition, the lymph vessels (tiny tubes that branch like blood vessels into all parts of the body) and lymph nodes (pea-shaped organs that are found along the network of lymph vessels) are also part of the lymph system.

Pulp-The soft, innermost layer of a tooth that contains its blood vessels and nerves.

Pulpitis-Inflammation of the pulp of a tooth that involves the blood vessels and nerves.

When the antibodies encounter allergens, mast cells release granules, which spill out their chemicals onto the cells of nearby tissues, including blood vessels and nerves.

It stimulates widening of blood vessels and increased porousness of blood vessel walls so that fluid and protein leak out from the blood into the surrounding tissue, causing localised inflammation of the tissue.

These disorders vary widely in their severity as well as the specific blood vessels and organs affected.

Vasculitis may damage blood vessels in two different ways.

A characteristic finding in children diagnosed with HSP is higher levels of immunoglobulin A (IgA) in the blood and deposits of IgA on the walls of the child's blood vessels.

The inflammation of the aorta eventually leads either to the formation of aneurysms or the narrowing or complete blocking of the blood vessels.

Most patients with vasculitis will be given corticosteroids (usually prednisone) to reduce joint pain if present and inflammation in the blood vessels.

Stents are small metal tubes or wires that are inserted into damaged blood vessels to hold them open.

Vasculopathy-Any disease or disorder that affects the blood vessels.

These hormones cause constriction of blood vessels.

Decongestants relieve the swelling by narrowing the blood vessels that supply the nose.

Collagen is a strong, fibrous protein that lends strength and elasticity to connective tissues such as the skin, tendons, organ walls, cartilage, and blood vessels.

Since the red blood cells do not have a normal shape, their circulation in the small blood vessels is impaired as well as the function of the abnormal hemoglobin (HbS) which can no longer carry oxygen with maximum efficiency.

Diabetes and its complications can be detected by blood tests, indepth eye examinations, and studies that assess the flow of blood through blood vessels in the legs.

Disseminated intravascular coagulation (DIC) is a condition in which blood clots occur within blood vessels in a number of tissues.

The organism not only damages the blood vessels by causing them to leak, but also causes clotting inside the vessels.

If the infection is not treated, the follicles develop into large yellow or gray pimples, and small blood vessels develop inside the cornea.

It is caused by an injury to the head that tears blood vessels.

Enlargement of the heart can be seen in x rays and congestion of the blood vessels in the lungs.

Topical stimulants are used as decongestants, since they cause blood vessels to contract.

Methamphetamine causes increased heart rate and blood pressure and can cause irreversible damage to blood vessels in the brain, producing strokes.

Without this enzyme, fatty compounds start to line the blood vessels.

The collection of fatty deposits eventually affects blood vessels in the skin, heart, kidneys, and nervous system.

The cornea is normally devoid of blood vessels yet has many sensory nerves.

These drugs act by constricting the blood vessels in the eye, decreasing the blood supply to the eye and delaying healing.

The body's initial response is to conserve heat by vasoconstriction, a process in which blood vessels narrow and prevent heat loss from the skin and elsewhere.

Ataxia means poor coordination, and the telangiectasia are tiny, red spider blood vessels which develop in A-T patients, especially on the whites of the eyes and on the surface of the ears.

Telangiectasia-Abnormal dilation of capillary blood vessels leading to the formation of telangiectases or angiomas.

Pericarditis-Inflammation of the pericardium, the sac that surrounds the heart and the roots of the great blood vessels.

Pulmonary hypertension-A disorder in which the pressure in the blood vessels of the lungs is abnormally high.

Therefore, headaches may result from contraction of the muscles of the scalp, face or neck; dilation of the blood vessels in the head; or brain swelling that stretches the brain's coverings.

Decongestants-A group of medications, such as pseudoephedrine, phenylephrine, and phenylpropanolamine, that shrink blood vessels and consequently mucus membranes.

In this type of treatment, insulin-producing islet cells are harvested from a donor pancreas and injected into the liver of a recipient, where they attach to new blood vessels and (ideally) begin producing insulin.

Diabetic retinopathy-A condition seen most frequently in individuals with poorly controlled diabetes mellitus where the tiny blood vessels to the retina, the tissues that sense light at the back of the eye, are damaged.

Hereditary hemorrhagic telangiectasia is a condition characterized by abnormal blood vessels which are delicate and prone to bleeding.

Telangiectasia is an arterial-venous malformation (AVM) composed of small blood vessels.

Unlike hemophilia, where bleeding is caused by an ineffective clotting mechanism in the blood, bleeding in hereditary hemorrhagic telangiectasia is caused by fragile blood vessels.

The eyes and their muscles, nerves, and blood vessels may be injured as well as the eye socket (orbit), which can be fractured by a forceful blow.

Orbit-The eye socket which contains the eyeball, muscles, nerves, and blood vessels that serve the eye.

Congenital heart defects occur when the heart or blood vessels near the heart do not develop properly before birth.

Effusion is the collection of fluid that escapes from blood vessels or the lymphatic system.

In young children, even if the head does not contact a solid surface, the shaking, whiplash movement from some vehicle crashes causes blood vessels to burst in the brain.

Amputation may be the only therapeutic option for large tumors involving nerves or blood vessels that have not responded to chemotherapy.

Surgery, coordinated with diagnostic biopsy, enhances the probability that limb-salvage surgery can be used to remove the cancer while preserving nearby blood vessels and bones.

It provides protection for the brain and spinal cord, as well as housing many blood vessels and participating in the appropriate flow of cerebrospinal fluid.

Pressure from the clamp stops bleeding from blood vessels that supplied the foreskin.

Vigorous exercise may also cause bruises due to bringing about small tears in blood vessels walls.

In a condition known as purpura simplex, there is a tendency to bruise easily due to an increased fragility of the blood vessels.

An abnormal tendency to bleed may be due to hereditary bleeding disorders, certain prescription medications, diseases of the blood such as leukemia, and diseases that increase the fragility of blood vessels.

However, a small percentage of these tumors are large, hard, and full of blood vessels and may stress the fetal heart.

These may be treated with a surgical procedure that destroys the blood vessels leading to the tumor, thereby preventing its growth.

Using an echocardiogram device, RFA is applied until the blood vessels and surrounding tissue are destroyed and the blood flow is halted.

Radiofrequency ablation (RFA)-A procedure in which radiofrequency waves are used to destroy blood vessels and tissues.

The disorder is also occasionally defined as a systemic vasculopathy, systemic meaning that it affects the body as a whole rather than just one part, and vasculopathy meaning that it affects the blood vessels.

In this test, the doctor removes a small piece of muscle tissue and has it examined under a microscope to see whether the muscle fibers and nearby blood vessels have undergone certain changes that indicate JDMS.

When one or more blood vessels in the kidneys become narrowed (renal artery stenosis) because of debris and plaque build-up, or blocked because of a blood clot (renal vein thrombosis), the kidneys are unable to function properly.

Arteries are the blood vessels that carry oxygenated blood from the heart to the body's tissues.

When atherosclerosis occurs in the blood vessels leading to the legs and feet, it is called peripheral vascular disease.

Hypertension can cause damage to blood vessels in the eyes, leading to retinopathy, or damage to the retina.

Because hypertension can cause damage to the blood vessels in the eyes, the eyes may be checked with an instrument called an ophthalmoscope.

The physician will look for thickening, narrowing, or hemorrhages in the blood vessels.

Umbilical cord-The blood vessels that allow the developing baby to receive nutrition and oxygen from its mother; the blood vessels also eliminate the baby's waste products.

The choroid is the middle layer and contains blood vessels that nourish the eye.

The deformed shape makes it hard for sickle cells to pass through narrow blood vessels.

Some CT scans also require the injection of contrast material into the vein to help define the blood vessels and surrounding tissue.

Infants and small children are especially vulnerable to SBS because their neck muscles are still too weak to adequately support their disproportionately large heads, and their young brain tissue and blood vessels are extremely fragile.

Platelets, tiny colorless cells in the blood, initiate contraction of damaged blood vessels so that less blood is lost.

They also help plug damaged blood vessels and work with other constituents in plasma to accelerate blood clotting.

Disseminated intravascular coagulation (DIC) occurs when the malfunction of clotting factors causes platelets to form clots in small blood vessels throughout the body.

Shock can occur when the released histamine causes the blood vessels to dilate, which lowers blood pressure; histamine also causes fluids to leak from the bloodstream into the tissues, lowering the blood volume.

The blood vessels feeding them are the black dots that are visible on the wart.

When blood vessels are injured in a way that causes bleeding, platelets collect over the injured area, forming a temporary plug to prevent further bleeding.

Small blood vessels in the lungs (capillaries) begin to empty protein-rich fluid into the alveoli, a condition that results in a less functional area for oxygen-carbon dioxide exchange.

It is a condition in which immature and fragile blood vessels within the brain burst and bleed into the hollow chambers (ventricles) normally reserved for cerebrospinal fluid and into the tissue surrounding them.

Retinopathy of prematurity is a condition in which the blood vessels in the baby's eyes do not develop normally, and can, in some cases, result in blindness.

Intraventricular hemorrhage (IVH)-A condition in which fragile blood vessels within the brain burst and bleed into the hollow chambers (ventricles) of the brain and into the tissue surrounding them.

Retinopathy of prematurity-A condition in which the blood vessels in a premature infant's eyes do not develop normally.

These complexes can be deposited in blood vessels and on membranes, causing inflammatory reactions that may be either localized or throughout the body.

Transposition of the great arteries (TGA) is a birth defect causing a fatal condition in which there is a reversal, or switch, in the primary connections of the two main (great) blood vessels to the heart, the aorta and pulmonary artery.

These chemicals cause blood vessels to become more porous, allowing fluid to accumulate in tissue and leading to the swollen and reddish appearance of hives.

The skin begins to freeze, causing ice crystal formation, damage to capillaries (the tiny blood vessels that connect the arteries and veins), and other changes that damage and eventually kill cells.

Tissue hypoxia, or oxygen deficiency, occurs next as a survival mechanism in the body kicks in, causing the blood vessels in the hands, feet, and other extremities to narrow in response to cold.

Damage also occurs to the endothelial cells that line the blood vessels.

Diagnostic tests only become useful three to five days after rewarming, once the blood vessels have stabilized.

This rapid rewarming halts ice crystal formation and dilates narrowed blood vessels.

In surgical closure of PDA, called a ligation, the chest cavity is opened, the blood vessels are separated, and the PDA is sewn closed.

The port wine stain is a benign tumor just under the surface of the skin, made up of overabundant blood vessels (angiomas).

In some cases, early surgical removal of the part of the brain with the abnormal blood vessels may be considered.

Angioma-A tumor (such as a hemangioma or lymphangioma) that mainly consists of blood vessels or lymphatic vessels.

Blood-brain barrier-An arrangement of cells within the blood vessels of the brain that prevents the passage of toxic substances, including infectious agents, from the blood and into the brain.

The mother reclines with a slight pelvic tilt to prevent compression of the large blood vessels by the pregnant uterus.

If a newborn infant is to breathe properly, the small air sacs (alveoli) at the ends of the breathing tubes must remain open so that oxygen in the air can get into the tiny blood vessels that surround the alveoli.

Sometimes a layer of fibrous tissue called a hyaline membrane forms in the air sacs, making it even harder for oxygen to get through to the blood vessels.

When the antibodies encounter allergens, they trigger release of the granules, which spill out their chemicals onto neighboring cells, including blood vessels and nerve cells.

Interaction of histamine with receptors on blood vessels causes neighboring cells to become leaky, leading to the fluid collection, swelling, and increased redness characteristic of a runny nose and red, irritated eyes.

Decongestants constrict blood vessels to counteract the effects of histamine.

Birthmarks are groups of malformed pigment cells or blood vessels.

Vascular birthmarks are benign (noncancerous) skin growths comprised of rapidly growing or poorly formed blood vessels or lymph vessels.

This concentration of immature blood vessels is most visible when the baby is crying.

Hemangiomas are a concentration of tiny, immature blood vessels.

They are occasionally linked with an increase of blood vessels in the brain or glaucoma.

Lasers create intensive heat that destroys abnormal blood vessels beneath the skin, without damaging normal skin.

Cutaneous angiolipomas-Benign growths consisting of fat cells and blood vessels just underneath the skin.

Hemangioma-A benign skin tumor composed of abnormal blood vessels.

Its primary function is to help maintain a constant blood pressure by stimulating certain blood vessels to constrict when the blood pressure falls below normal.

Enterocolitis-Severe inflammation of the intestines that affects the intestinal lining, muscle, nerves and blood vessels.

The ultraviolet rays in sunlight destroy cells in the outer layer of the skin, damaging tiny blood vessels underneath.

When the skin is burned, the blood vessels dilate and leak fluid.

These blood vessels are easy to injure and bleeding can occur.

To further examine the nose, the doctor may perform a nasal endoscopy, a procedure that involves inserting a tiny camera into the nose to look at blood vessels and nasal structures.

Estrogen cream, the same preparation used to revitalize vaginal tissue, can toughen fragile blood vessels in the anterior septum and forestall the need for cauterization.

Bioflavonoids are antioxidants found in citrus fruits that help strengthen blood vessels.

This keeps the nose from drying out and producing surface cracks which can damage blood vessels in the lining of the nose and cause bleeding.

Nasal endoscopy-A procedure that involves inserting a tiny camera into the nose in order to look at blood vessels and nasal structures.

In congenital fistulas, blood vessels of the lower extremity are more frequently involved than other areas of the body.

Other fistulas can cause more serious problems without obvious symptoms, depending on their location and the blood vessels involved.

Dye injected into the blood vessels can be tracked by x ray to confirm the presence of a fistula.

In infants, the skin lesions are usually found on the face, scalp, diaper area, body folds, hands, and feet, and tend to be exudative (oozing fluid that has escaped from blood vessels as a result of inflammation).

Retinopathy of prematurity (ROP) is an abnormal growth of blood vessels in the eye.

The placenta is a bundle of tissue and blood vessels that helped support the baby while he/she was in your body.

Dizziness. Changes in blood pressure and in how your blood vessels react can make you feel a bit lightheaded if you stand up quickly or remain standing very long.

Soft tissue lasers - These lasers penetrate the soft tissue and seal blood vessels and nerve endings.

The nutrient is also instrumental in keeping blood vessels flexible and healthy as well as regulating proper bone development.

Restenosis is a narrowing of blood vessels that impedes the flow of blood.

These cells form your skin as well as line the hollow organs and blood vessels of your body.

Evidence suggests consuming pomegranates may help to lower LDL, or bad cholesterol, while helping to maintain the health of your blood vessels.

An allergic reaction causes your blood vessels to dilate which increase blood flow.

Calcium plays a significant role in the relaxation and constriction of blood vessels.

Fish oil raises elasticity in blood vessels which results in improved blood flow while exercising.

Eating foods with a lot of fat can lead to atherosclerosis -- which is narrowing of blood vessels -- and heart disease and stroke.

When you exercise regularly, a similar strengthening effect occurs in the blood vessels.

Atherosclerosis forces your heart to work harder by narrowing the diameter of the blood vessels.

The risk also exists for clots to form if the plaque lining the blood vessels dislodges and blocks a coronary artery, causing damage or a heart attack.

The formation of plaque on the inner lining of your blood vessels narrows the passageway for blood flow, forcing your heart to work harder.

The formation of plaque also presents a risk if it breaks loose from the blood vessels and forms a clot.

This in turn keeps the blood vessels healthy and prevents unnecessary hardening.

If you have a family history of cardiovascular health problems, you'll be interested to know that a proper warm up opens up the blood vessels.

This in turn translates to lower resting heart rate, lower blood pressure and less stiff blood vessels with less risk of plaque buildup.

As the temperature of your muscles increases, vasodilation of the blood vessels occurs.

This narrowing of blood vessels causes your heart to work harder leading to high blood pressure.

Three to five minutes walking at a moderate pace will get your blood circulating and cause blood vessels to dilate.

Over time, the heart gets stronger and develops a lower resting heart rate and can pump blood more efficiently; this puts less stress on the circulatory system and keeps the blood vessels from hardening.

The cause is unknown, but it may be related to abnormal blood vessels in the deeper layers of the skin.

The dermis contains blood vessels and nerve endings.

Larger blood vessels and nerves are found here.

Additionally, some blood vessels may show on the face.

This redness is caused by the swelling blood vessels close to the surface of the skin.

Laser technology is highly effective in treating the red lines (telangietasis) that appear when the tiny blood vessels under the skin become enlarged.

After laser treatments are completed, if sun exposure is limited or avoided by wearing a strong sunscreen daily, visible blood vessels may not return for months or even years.

In birds, this stalk consists entirely of blood-vessels, which in the adult enclose no terminal vesicle, and fuse with the membranous linings of the skull.

They are very thin-walled membranes, very poor in blood-vessels, formed by the bulged-out pleural or peritoneal covering of the lungs, through the parabronchial tubes of which they are filled with air.

Exchange of gas through the walls of the air-sacs, almost devoid of blood-vessels, can at best be much restricted.

Below the surface these walls are excavated with blood-vessels, so that the sac is practically a series of blood-vessels covered with renal epithelium, and forming 6 Cephalic tentacle.

Mackerel, like all fishes of this family, have a firm flesh; that is, the muscles of the several segments are interlaced, and receive a greater supply of blood-vessels and nerves than in other fishes.

Outside the wall of the oesophagus a vascular space has been detected which is in direct continuity with the longitudinal blood-vessels.

Associated with the lateral blood-vessels are the single pair of nephridia.

A portion of the body may die in consequence of the disturbance of its nutrition by inflammation, or of a cutting off of the bloodsupply, as by pressure upon, or injury to, the blood-vessels.

The parasites, which cling to the intestinal mucous membrane, draw their nourishment from the blood-vessels of their host, and as they are found in hundreds in the body after death, the disorders of digestion, the increasing anaemia and the consequent dropsies and other cachectic symptoms are easily explained.