How to use Distal in a sentence
Bleeding from a vein is of a darker colour; the flow is steady, and the bleeding is from the distal end of the vessel.
The distal portions form the muscles of the tentacles.
The longitudinal system is discontinuous, and is subdivided into proximal, medial and distal portions.
The maxillaries are connected with the distal anterior corner of the quadrate by the thin, splint-like jugal and quadratojugal.
It is almost certain that the distal of these two segments really belongs to the thigh, but the ordinary nomenclature will be used in the present article, as this character is of great importance in discriminating families, and the two segments in question are referred to the trochanter by most systematic writers.Advertisement
It is homologous with the distal ends of the ceratohyals or ventral elements of the hyoidean or second visceral arch.
In birds of various groups the clavicles are more or less degenerated, the reduction beginning at the distal end.
Its proximal end forms a shallow cup for articulation with the outer condyle of the humerus; the distal end bears a knob which fits into the radial carpal.
This and the third are much longer and fuse together at their upper and distal ends, leaving as a rule a space between the shafts.
Typically there are two pairs - a proximal, more or less approximated on the postero-dorsal surface, and a distal pair, more widely separate.Advertisement
But the proximal pair are often fused into a single median antenna (supplied, however, by two nerves), and in one case at least the distal pair may be similarly fused.
If a distal pore or aperture is present, it is excretory in function; suck varieties have been termed " cystons " by Haeckel.
The clavicles, when united, as usual, form the furcula; mostly the distal median portion is drawn out into a hypocleidium of various shape.
The distal end of the humerus ends in a trochlea, with a larger knob for the ulna and a smaller oval knob for the radius.
Of wrist-bones only two remain in the adult bird; the original distal carpals coalesce with the proximal end of the metacarpals.Advertisement
The distal half of the fibula is very slender and normally does not reach the ankle-joint; it is attached to the peroneal ridge of the tibia.
Of the metatarsals the fifth occurs as an embryonic vestige near the joint; the first is reduced to its distal portion, and is, with the hallux, shoved on to the inner and posterior side of the foot, at least in the majority of birds.
Here, alone, at the distal portion of the tendon, occur muscular fibres, but these are unstriped, belonging to the category of cutaneous muscles.
One of these, broad and fleshy, is inserted upon the posterior surface of the distal third of the femur.
The keel is pushed back to the distal third of the sternum, whilst the original anterior margin of the keel is correspondingly elongated,and the furcula fused with the rostral portion.Advertisement
It is protruded and retracted by special muscles which are partly attached to the ventral, distal end of the ilium.
The distal extremity of this apparatus is sometimes eversible as a penis.
In a few Enchytraeidae and Lumbriculidae the spermathecae open at the distal extremity into the oesophagus, which is a fact difficult of explanation.
Elaboration in the form of the feelers, often a secondary sexual character in male insects, may result from a distal broadening of the segments, so that the appendage becomes serrate, or from the development of processes bearing sensory organs, so that the structure is pinnate or feather-like.
The fifth (distal) tarsal segment carries a median adhesive pad - the pulvillus - on either side of which is a claw.Advertisement
An ear of another type is found in the swollen second segment of the feeler in many male gnats and midges, the cuticle between this segment and the third forming an annular drum which is connected with numerous nerveendings, while the fine bristles on the more distal segments vibrate in response to the note produced by the humming of the female.
Further examination also revealed the fact 3 that in certain groups the number of " primaries," or quill-feathers growing from the manus or distal segment of the wing, formed another characteristic easy of observation.
Serrula on movable digit of appendages of 1st pair fixed throughout its length, and broader at its proximal than at its distal end; the immovable digit with an external process.
Intromittent organ of male placed at the distal end of the appendage of the 5th pair.
When a nerve-trunk is separated from its central connexion, the distal portion falls into a state of fatty degeneration (Wallerian or secondary degeneration).Advertisement
The replacement of detached mature proglottides at the distal end of the Cestode-body by others is not regeneration, for the replacing set has already developed, and in certain cases they can complete their development quite independently after being detached from the parent.
Cavity of the zooecium subdivided by transverse diaphragms, most numerous in the distal portion.
The species may be further distinguished by the former having the proximal third of the tail-quills pure white, and the distal two-thirds black, with a narrow white margin, while the latter has the same feathers barred with black and white alternately for nearly their whole length.
The largest is placed ventrally at some distance distal to the mouth.
There are also two pairs of distal antennae.Advertisement
In Asplanchnaceae the germary is median, continuous at the distal end with the middle of the transverse horseshoe-shaped vitellary.
Usually each tube is provided with caecal appendages on its proximal portion, and these serve as vesiculae seminales, while the distal portion is enlarged and glandular and secretes the egg-shell.
A little later the breaking down of the whole axon, both axis cylinder and myelin sheath alike, seems to occur simultaneously throughout its entire length distal to the place of severance.
The distal club corresponds to the crystal-sac of an ordinary After Wladimir Schewiakoff, simplified from rhopalium, but bears a battery a coloured plate in Morphologisches Jahrbuch, of nematocysts in place of the xv., 1889, by permission of Wilhelm Engelotoliths.
The histological structure oc', oc 2, Distal and proximal median of the Scyphomedusae is in ocelli.Advertisement
The two distal endites are regarded as corresponding to the endopodite and exopodite of the higher Crustacea, the axis or corm of the Phyllopod limb representing the protopodite.
The number of exites is less constant, but, in A pus, two are present, the proximal branchial in function and the distal forming a stiffer plate which probably aids in swimming.
It is not altogether easy to recognize the homologies of the endites and exites even within the order Phyllopoda, and the identification of the two distal endites as corresponding to the endopodite and exopodite of higher Crustacea is not free from difficulty.
Close to each cerebral ganglion is a pleural ganglion, and each is connected by a long nerve with the pedal ganglion of the same side, the two connectives of either side being united in the distal part of their course.
In Cycas revoluta and C. circinalis each leaf-like carpel may produce several laterally attached ovules, but in C. Normanbyana the carpel is shorter and the ovules are reduced to two; this latter type brings us nearer to the carpels of Dioon, in which the flower has the form of a cone, and the distal end of the carpels is longer and more leaf-like than in the other genera of the Zamieae, which are characterized by shorter carpels with thick peltate heads bearing two ovules on the morphologically lower surface.Advertisement
The distal ends of these girdles give off several branches, which traverse the petiole and rachis as numerous collateral bundles.
Similarly in the sporophylls of some cycads the bundles are endarch near the base and mesarch near the distal end of the stamen or carpel.
The stamens of Araucaria and Agathis are peculiar in bearing several long and narrow free pollen-sacs; these may be compared with the sporangiophores of the horsetails (Equisetum); in Taxus (yew) the filament is attached to the centre of a large circular distal expansion, which bears several pollen-sacs on its under surface.
In Araucaria Cookii and some allied species each scale has a small pointed projection from its upper face near the distal end, the scales of Cunninghamia (China) are characterized by a somewhat ragged membranous projection extending across the upper face between the seeds and the distal end of the scale; in the scales of Athrotaxis (Tasmania) a prominent rounded ridge occupies a corresponding position.
In the order Stolonifera the zooids spring at intervals from branching or lamellar stolons, and are usually free from one another, except at their bases, but in some cases horizontal solenia arising at various heights from the body-wall may place the more distal portions of the zooids in communication with one another.Advertisement
In the Tubiporidae the spicules of the proximal part of the body-wall are fused together to form a firm tube, the corallite, into which the distal part of the zooid can be retracted.
The pinnae are formed by the elongated autozooids, whose proximal portions are fused together to form a leaf-like expansion, from the upper edge of which the distal extremities of the zooids project.
There is no reason to suppose that the central apical plate of certain free-swimming crinoids has any more to do with the distal foot-plate of the larval Antedon stem than has the so-called centrodorsal of Antedon itself, which is nothing but the compressed proximal end of the stem.
At the narrow distal end of the leg there are on the ventral surface three or four (rarely five) spiniferous pads, each of which is continued dorsally into a row of papillae.
The foot is attached to the distal end of the leg.
It bears two sickle-shaped claws, and at its distal end three (rarely four) papillae.
The legs of the fourth and fifth pairs differ from the others in the fact that the third pad (counting from the distal end of the leg) carries the opening of the enlarged nephridia of these segments.
More constant points of difference are the form of the jaws, the position of the generative orifice, the presence of a receptaculum seminis and a receptaculum ovorum, the arrangement of the primary papillae on the distal end of the feet, and above all the early development.
The sporangium is attached to the enlarged distal end of its pedicel, from which it hangs down, so as to suggest an anatropous ovule on its funiculus.
Dawsoni in the fact that each sporangiophore bears two sporangia, attached to a distal expansion approaching the peltate scale of the Equisetales.
The genus Spencerites (Lower Coal Measures) differs from Lepidostrobus mainly in the insertion of the sporangium, which, instead of being attached along the whole upper surface of the sporophyll, was connected with an outgrowth on its upper surface by a small neck of tissue towards the distal end.
There are occasionally intercalary ossifications between the two distal phalanges (33).
This will prevent the excess traction on the first sutures of the distal anastomosis.
One of these patients has a sac which has increased in size, the other 2 had distal implantation leaks at completion angiography.
Obstruction or rupture of the urinary tract distal to the renal pelvis will result in a post-renal azotemia.
Short stretch bandages are then applied, sometimes in several layers, to provide a graduated pressure profile, reducing from distal to proximal.
Collimate around the sides of the limb and include the whole calcaneus, the distal tibia and the proximal metatarsus.
With the camera still placed through portal 3 the anchor is inserted into the under surface if the distal clavicle.
Proximal metatarsal osteotomy will give a good correction of the deformity combined with a distal soft tissue correction of the deformity combined with a distal soft tissue correction.
At the distal wrist crease it enters the carpal tunnel where it should not be blocked (neuritis may result ).
The distribution of these glands is mostly proximal to the ampulla of Vater, with most of them being just distal to the pylorus.
On examination, there is tenderness about the scapholunate interval, which lies just distal to the Lister tubercle.
The bite had left a sub-circular depressed fracture about 6mm across on the dorsal surface of the shaft, just above the distal epiphysis.
In T3 tumors of the distal esophagus, a negative EUS result does not substantiate absence of CLN disease.
A 34 year old man sustained an open fracture of the distal femur with bone loss.
Frances is getting her first surgery tomorrow on her distal fibula of her left leg.
Further, bone mineral density of the proximal femur, lateral spine, and distal forearm was studied after eight years.
Figure 1 is a sketch of the anatomy of the distal forelimb of the horse.
Following subtotal distal gastrectomy functional long-term results might be generally better in comparison to total gastrectomy.
Using a sterile dressing pack and sterile gloves, thoroughly swab the distal end of the catheter and cap with Betadine and methylated spirits.
Diagnosis Thrombosis of the aorta and aortic graft Renal infarction Discussion The more distal images demonstrated the nature of his previous surgery.
There is a growth of bone on the distal left humerus measuring 6mm wide and 7 mm high.
Specimen 1 is a fragment of the distal part of the shaft of a right humerus, probably of an adult individual.
The section most commonly affected is the distal ileum.
Laparotomy showed the proximal ileum and distal jejunum had prolapsed through a tear at the rectosigmoid junction.
The distal ligature is knotted and the ends of the proximal ligature are held without knotting.
The distal part forms most of the anterior lobe.
Potassium - Adaptive processes increase potassium secretion in the distal nephron (collecting tubules) and also in the gut.
You don't usually need a plaster after a distal chevron osteotomy.
The mean operative time for all the patients undergoing distal pancreatectomy was 4 hours, ranging from 3 to 5 hours.
Thursday, July 13, 2006 Have you had experience of laparoscopic distal pancreatectomy?
Release of the FDL tendon from the distal phalanx may produce a marginal improvement in results.
Examples of these conditions are fractures of the distal radius, hand phalanxes, tibial diaphysis, proximal femur and proximal humerus.
A chest X ray showed an apical pneumothorax on the left side with inferior displacement of the distal fracture segment.
No complications were seen from the donor site or from the osteotomy site on the distal tibia.
Specimen 2 is a distal fragment of an adult right tibia.
An indirect sac should never be dissected distal to the pubic tubercle.
The next portion of the tubule is the loop of Henle, which leads to the distal convoluted tubule.
Leave well alone but can do shortening of distal ulna and radius closing wedge osteotomy.
Pathologic examination revealed transitional cell carcinoma located in the distal and mid portion of the penile urethra.
The distal tarsalia likewise fuse together, and then on to the upper ends of the metatarsals; the tarsale centrale remains sometimes as a separate osseous nodule, buried in the inter-articular pad.
The caud-ilio flexorius (semitendinosus of most authors) arises from the transverse processes of the tail, and from the distal half of the postacetabular ilium, thence passing as a broad ribbon to the popliteal region, where it splits into two portions.
The simple nerve-ganglion or brain (g) lies on the anterodorsal side of the pharynx, and by its position determines the orientation of the animal, the cloacal opening lying on the same side, and the course of the gut being" neural."The sense organs are a pair of pigmented eyes (oc), and two pairs of antennae, one anterior proximal and near the wreath, the other distal and usually more or less lateral.
Fossil flowers of a type more like that of modern Cycads are few in number, and it is not by any means certain that all of those described as Cycadean flowers and seeds were borne by plants which should be included in the Cycadophyta; a few female flowers have been described from Rhaetic rocks of Scania and elsewhere under the name Zamiostrobus - these consist of an axis with slender pedicels or carpophylls given off at a wide angle and bearing two ovules at the distal end; the structure is in fact similar to that of a Zamia female flower, in which the internodes of the peduncle have been elongated so as to give a looser arrangement to the carpels.
Removal of the ovaries from heifers also causes an increase in the longitudinal growth of distal bones.
With use of imaging, the trailing end of the wire is located and is withdrawn until its end reaches the distal scaphoid cortex.
Perhaps most importantly, lateral radiographs reveal the presence of volar subluxation of the distal phalanx.
Dr. Calman said that he would be advising Ministers that the distal ileum and thymus of calves should be proscribed as SBO.
About 80 percent of all osteosarcomas develop in the parts of the upper and lower leg nearest the knee (the distal femur or in the proximal tibia).
Distal muscular dystrophy (DD)-A form of muscular dystrophy that usually begins in middle age or later, causing weakness in the muscles of the feet and hands.
Only in the ostrich the distal ends of the pubes meet, forming a daggershaped symphysis, which is curved forwards.
The condyles of the tibia are in reality not parts of this bone, but are the three proximal tarsalia which fuse together and with the distal end of the tibia.