Aorta sentence example

aorta
  • In the primitive form a single anterior aorta is given off from the ventricle, the two together representing the dorsal blood-vessel of Chaetopods.
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  • The dorsal vessel is prolonged anteriorly into an aorta, through which the blood is propelled into the great After Miall and Denny, The Cockroach, Lovell body-cavity or haemoReeve & Co.
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  • To the left of the vena cava is the Spigelian lobe, which lies in front of the bodies of the tenth and eleventh thoracic vertebrae, the lesser sac of peritoneum, diaphragm and thoracic aorta intervening.
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  • Abdominal ultrasonography showed swollen lymph nodes around the abdominal aorta.
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  • The aorta is the large artery that takes blood from the left ventricle of the heart to the body.
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  • Both present the appearance of diminutive clusters of grapes, at the anterior end of the kidneys, close to the suprarenal bodies, separated from each other by the descending aorta and by the vena cava where this is formed by the right and left vena iliaca communis.
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  • Scorpio certainly comes nearer to Limulus in the high development of its arterial system, and the intimate relation of the anterior aorta and its branches to the nerve centres and great nerves, than does any other Arthropod.
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  • The aorta gives off a large branch (the anterior aorta) very near its origin, from which arise - first, the left axillary, and afterwards the right axillary and the two carotid arteries.
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  • Open the aneurysm sac and control the suprarenal aorta with a Foley catheter balloon.
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  • The coronary arteries come out of the aorta just after the last heart valve (the aortic valve).
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  • Each time, supplementation has resulted in the significant reduction of plaque in the aorta, as well as reducing the amount of accumulated cholesterol on the vascular walls.
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  • It was later discovered that Ritter's death was due to a torn aorta.
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  • Yasbeck and the Ritter children claimed that Dr. Lotysch should have detected the problem with the aorta at that time.
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  • The aorta is the largest artery in the body.
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  • Aortic valve-The valve between the heart's left ventricle and ascending aorta that prevents regurgitation of blood back into the left ventricle.
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  • The heart c lying in the pericardium is seen in close proximity to the renal organ, and consists of a single auricle receiving blood from the gill, and of a single ventricle which pumps it through the body by an anterior and posterior aorta.
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  • The figure B also shows the peculiar neural investiture formed by the cerebral arteries in Limulus and the derivation from this of the arteries to the limbs, III, IV, VI, whereas in Scorpio the latter have a separate origin from the anterior aorta.
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  • The heart has a pair of venous ostia, often blending into one, and an anterior arterial aorta.
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  • Heart gives off only an anterior aorta.
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  • The ventricle leads into a single anterior median aorta.
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  • 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.
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  • The flow in the ascending aorta is particularly complex.
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  • They discovered a large aneurysm of the proximal descending aorta at the site of the Dacron Patch Graft repair done 14 years earlier.
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  • One to clamp the aorta and one to clamp the graft when testing the upper anastomosis.
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  • The major life threatening complication affects the aorta, which is the major vessel arising from the main pumping chamber of the heart.
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  • If he'd cut an aorta, there would be a shower of blood everywhere, yet there was almost nothing.
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  • Aortic aneurysm or aortic dissection occurred in 18 %, usually in the thoracic aorta (about 60% ).
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  • The abdominal aorta is the commonest site for a true aneurysm.
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  • This a tube made out of an elastic material that is very similar to a normal healthy aorta.
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  • A major focus of his work is on the formation of the dorsal aorta and the generation of adult blood stem cells during embryogenesis.
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  • Enlargement of the aorta can cause disturbance in the function of the aorta valve (leaky aortic valve ).
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  • Findings The film shows calcification within the wall of the abdominal aorta.
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  • There should be about 2mm of aorta visible below the aortic clamp.
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  • Flow enters the aorta at the aortic root, which is a relatively distensible portion of the aorta.
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  • Diagnosis Thrombosis of the aorta and aortic graft Renal infarction Discussion The more distal images demonstrated the nature of his previous surgery.
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  • The coronary arteries come out of the aorta just after the last heart valve (the aortic valve ).
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  • The " Main artery " is called the aorta, and the " main vein " is called the vena cava.
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  • The aorta in turn, arises from the left ventricle which is the main pumping chamber of the heart.
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  • The aorta may be fatally weakened by a lack of mature elastin in animals deprived of dietary copper.
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  • Patent ductus arteriosus-A congenital defect in which the temporary blood vessel connecting the left pulmonary artery to the aorta in the fetus doesn't close after birth.
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  • An aortic aneurysm is an abnormal bulging of part of the aorta that may cause blood to leak through the aortic valve and flow the wrong direction.
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  • Takayasu arteritis is a chronic inflammatory disorder that affects the aorta (the large artery that leaves the heart) and its major branches.
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  • The inflammation of the aorta eventually leads either to the formation of aneurysms or the narrowing or complete blocking of the blood vessels.
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  • Takayasu arteritis-A disease in which the aorta and its major branches become inflamed.
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  • Because of the abnormalities of the child's fibrillin, the walls of the aorta (the large blood vessel that carries blood away from the heart) are weaker than normal and tend to stretch and bulge out of shape.
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  • This stretching increases the likelihood of an aortic dissection, which is a tear or separation between the layers of tissue that make up the aorta.
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  • An aortic dissection usually causes severe pain in the abdomen, back, or chest, depending on the section of the aorta that is affected.
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  • Rupture of the aorta is a medical emergency requiring immediate surgery and medication.
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  • A weakened and enlarged aorta may allow some blood to leak back into the heart during each heartbeat; this condition is called aortic regurgitation.
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  • In terms of the cardiac examination, a standard electrocardiogram (EKG) is not sufficient for diagnosis; only the echocardiogram can detect possible enlargement of the aorta.
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  • After a child has been diagnosed with Marfan, he or she should be monitored with an echocardiogram every six months until it is clear that the aorta is not growing larger.
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  • If the echocardiogram does not allow the physician to visualize all portions of the aorta, CT (computed tomography) or MRI (magnetic resonance imaging) may be used.
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  • Surgery may be necessary if the width of the child's aorta increases rapidly or reaches a critical size (about 2 inches [5 cm]).
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  • The most common surgical treatment involves replacing the child's aortic valve and several inches of the aorta itself with a composite graft, which is a prosthetic heart valve sewn into one end of a Dacron tube.
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  • Weight lifting increases blood pressure, which in turn may enlarge the aorta.
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  • Many individuals with Williams syndrome have heart disorders, typically supravalvular aortic stenosis (SVAS), which is a narrowing of the aorta.
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  • Supravalvular aortic stenosis (SVAS)-A narrowing of the aorta.
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  • Coarctation of the aorta (COA) is a congenital heart defect that develops in the fetus.
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  • It involves a constricture of the aorta, the main artery that delivers blood from the left ventricle of the heart to the rest of the body.
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  • In a constricture or coarctation, the sides (walls) of the aorta press together abnormally, impeding the flow of blood.
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  • In the fetus, blood from the heart to the lungs is delivered into the aorta through a short blood vessel called the ductus arteriosis.
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  • In asymptomatic children with COA, the descending aorta receives left ventricle blood through the ascending aorta; these children have fewer, if any, associated cardiac abnormalities.
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  • Approximately 10 percent of newborns with congenital heart disease have symptomatic coarctation of the aorta.
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  • Constriction of the aorta, as in COA, produces resistance to the flow of blood, resulting in raising the blood pressure above the narrowing and reducing blood pressure below or downstream from the narrowing.
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  • Coarctation of the aorta is present in about 8 to 10 percent of infants born with other congenital heart defects, occurring approximately twice as many males as females.
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  • On examination of the heart rhythm using a stethoscope, infants with coarctation of the aorta usually have an abnormal "gallop" heart rhythm, and 50 percent of children also have heart murmurs.
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  • A 10 mm Hg (mercury) pressure difference between the upper and lower extremities is diagnostic for coarctation of the aorta.
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  • The goal of treatment in children is to reopen the ductus arteriosus and restore blood flow to the descending aorta.
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  • Drug therapy is used first to treat hypertension and heart failure in children and adults who have coarctation of the aorta.
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  • Surgery may be required for infants who have severe coarctation of the aorta and is usually recommended for those who have associated cardiac defects or those infants who do not respond to drug therapy.
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  • Surgery may involve resection of the coarctation segment or opening and patching the aorta where the coarctation occurred.
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  • Approximately half of all infants diagnosed with coarctation of the aorta have no other cardiac defects and respond well to medical management, growing and developing normally.
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  • The average life span of children who have coarctation of the aorta is 34 years of age, reduced primarily due to complications and to the presence of other heart problems.
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  • Women who have an uncorrected coarctation of the aorta have a mortality rate of 10 percent during pregnancy and a 90 percent rate of complications.
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  • Because congenital coarctation of the aorta is unpredicted, parents may be unprepared for the diagnosis and need careful, sensitive medical explanation by the pediatrician or surgeon.
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  • Cardiac catheterization-A procedure to passes a catheter through a large vein into the heart and its vessels for the purpose of diagnosing coronary artery disease, assessing injury or disease of the aorta, or evaluating cardiac function.
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  • Ductus arteriosus refers to an open passageway-or temporary blood vessel (ductus)-that carries blood from the heart via the pulmonary artery to the aorta before birth.
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  • When it does not close in the newborn, some of the blood that should flow through the aorta returns to the lungs.
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  • The right ventricle pumps blood into the pulmonary artery and blood reaches the aorta through a patent ductus arteriosus (see description in the previous section).
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  • In hypoplastic left heart syndrome, the baby seems normal at birth, but as the ductus closes, blood cannot reach the aorta and circulation fails.
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  • The most common obstruction defects are pulmonary valve stenosis, aortic valve stenosis, and coarctation of the aorta.
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  • In coarctation of the aorta, the aorta is constricted, reducing the flow of blood to the lower part of the body and increasing blood pressure in the upper body.
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  • Eisenmenger's complex is a ventricular septal defect coupled with pulmonary high blood pressure, an enlarged right ventricle, and sometimes an aorta that is not positioned correctly.
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  • Truncus arteriosus is a complex malformation in which only one artery comes from the heart and forms the aorta and pulmonary artery.
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  • The other defects are an overly muscular right ventricle and an aorta that lies over the ventricular septal defect.
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  • In transposition (reversal of position) of the great arteries, the positions of the pulmonary artery and the aorta are reversed, causing oxygen-rich blood to re-circulate to the lungs while oxygen-poor blood goes to the rest of the body.
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  • Marfan syndrome is a connective tissue disorder that causes tears in the aorta.
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  • Arterial switch, to correct transposition of the great arteries, involves connecting the aorta to the left ventricle and connecting the pulmonary artery to the right ventricle.
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  • Transposition of the great arteries also can be corrected by the Damus-Kaye-Stansel procedure, in which the pulmonary artery is cut in two and connected to the ascending aorta and the farthest section of the right ventricle.
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  • To correct aortic stenosis, the Ross procedure grafts the pulmonary artery to the aorta.
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  • For transposition of the great arteries, venous switch creates a tunnel inside the atria to re-direct oxygen-rich blood to the right ventricle and aorta, and venous blood to the left ventricle and pulmonary artery.
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  • Defects such as coarctation of the aorta and aortic valve stenosis have the greatest risk of occurring in the child's offspring.
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  • Coarctation of the aorta-A congenital defect in which severe narrowing or constriction of the aorta obstructs the flow of blood.
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  • Ductus-The blood vessel that joins the pulmonary artery and the aorta.
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  • From 5 to 10 percent of girls with Turner syndrome have a severe constriction of the major blood vessel coming from the heart (coarctation of the aorta).
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  • This defect is thought to be a result of an obstructed lymphatic system compressing the aorta during fetal development.
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  • 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.
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  • There are two great arteries that transport blood away from the heart, the pulmonary artery and the aorta.
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  • The aorta carries blood from the left ventricle to the vessels of the rest of the body.
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  • After the lungs, the blood flows to the left atrium, then the left ventricle pumps the blood out through the aorta to the rest of the body, thereby supplying the body with oxygenated blood.
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  • This condition causes oxygen depleted blood to be circulated to the body because the aorta is connected to the right ventricle.
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  • Blood returning to the heart goes to the right atrium and ventricle, and then it goes into the aorta for distribution throughout the body instead of to the lungs to be oxygenated.
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  • Clots in the veins can now pass through the hole in the heart and directly enter the aorta, where they can do much more damage than in the lungs such as causing infarcts in the brain.
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  • Patent ductus arteriosus (PDA) is a heart defect that occurs in infants when the ductus arteriosus (the temporary fetal blood vessel that connects the aorta and the pulmonary artery) does not close at birth.
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  • The ductus arteriosus is a temporary fetal blood vessel that connects the aorta and the pulmonary artery before birth.
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  • If the ductus arteriosus closes correctly, the blood pumped from the heart goes to the lungs, back into the heart, and then out to the body through the aorta.
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  • The blood returning from the lungs and moving out of the aorta carries oxygen to the cells of the body.
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  • The pressure between the heart and lungs of an individual affected by PDA causes some of the oxygenated blood that should go out to the body (through the aorta) to return back through the PDA into the pulmonary artery.
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  • If the pressure in the lungs is higher than that of the heart and body, blood returning to the heart will take the short cut back into the aorta from the pulmonary artery through the PDA instead of going to the lungs.
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  • The blood leaves the heart past three semi-lunar valves, by the right aorta, this being alone functional, a feature characteristic of, and peculiar to, birds.
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  • The aortic trunk is very short, sends off the coronary arteries and then the left aorta brachiocephalica, while the rest divides into the right brachiocephalic and the aorta descendens.
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  • Welch produced oedema of the lungs experimentally by increasing the pressure in the pulmonary vessels by ligature of the aorta and its branches, but this raised the blood pressure only about one-tenth of an atmosphere, while in some of Loeb's experiments the osmotic pressure, due to retained metabolic products, was equal to over thirty atmospheres.
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  • The heart in Patella consists of a single auricle (not two as in Haliotis and Fissurella) and a ventricle; the former receives the blood from the branchial vein, the latter distributes it through a large aorta which soon leads into irregular blood-lacunae.
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  • The heart is not contained in the pericardium, lies dorsad of the rectum and gives off a single aorta anteriorly.
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  • The gonad is transversely wrinkled and lies between the aorta and the intestine, extending from the pericardium to the anterior end of the body.
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  • The aorta is not independent as in Chitons, but is a sinus like the other channels of the circulation.
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  • In short, the single corporeal element of the Ionian physicists was, to borrow a phrase from Aristotle, a permanent aorta having 7r1cOrj which change; but they either neglected the iraOn or confounded them with the oboia.
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