Lastly, towards the caudal region the right and left strands approach and anastomose, eventually coalescing in the mid line.
Not more than thirteen caudal vertebrae.
- Pelvis and caudal vertebrae of adult Fowl, side view, natural size.
the caudal region of the spine is longer than the body.
(4) Caudal, those which are not connected with the pelvis.
Of course this doubleheaded condition is the more primitive, and as such exists in most nidifugous birds, but in many of these, as well as in many nidicolous birds, either the caudal or the iliac head is absent, and in a very few (Cancroma, Dicholophus, Steatornis and some Cathartes) the whole muscle is absent.
Ilium; Is, ischium; Pb, pubis; d.l, dorso-lumbar vertebrae; Cd, caudal vertebrae; Am, acetabulum.
This, when fully developed, consists of two parts, but inserted by a single ribbon-like tendon upon the hinder surface of the femur, near the end of its first third; the caudal part, femoro-caudalis, expressed by Garrod by the symbol A, arises from transverse processes of the tail; the iliac part (accessorofemoro-caudal of Garrod, with the symbol B), arises mostly from the outer surface of the postacetabular ilium.
The last six or seven caudal vertebrae coalesce into the pygostyle, an upright blade which carries the rectrices.
In all the Neornithes the total number of caudal vertebrae, inclusive of those which coalesce, is reduced to at least 13.
d.l, Dorso-lumbar, s, sacral, c, caudal vertebrae.
Caudal vertebrae more than thirteen, without a pygostyle, but with about twelve pairs of rectrices.
f2, f 3, Lateral and caudal sb, Seminal pouch.
z, Caudal appendage.
Aquatic larvae with caudal leaf-gills or with rectal tracheal system.
The Saururae have the metacarpals well developed and not ancylosed, and the caudal vertebrae are numerous and large, so that.
The caudal fin is crescent-shaped, strengthened at the base by two short ridges on each side.
Vertebrae: cervical, 7; dorsal, 18; lumbar, 5; sacral, 6; caudal about 12.
Vertebrae: cervical, 7; dorsal, 19-20; lumbar, 3; sacral, 4; caudal, about 22.
ce, Cerebral arteries; sp, supra - spinal or medullary artery; c, caudal artery; 1, lateral anastomotic artery of Limulus.
(Original drawing by Pocock and Pickard-Cambridge, after Hansen and Sorensen.) caudal support for the many-jointed flagelliform telson, as in the Urotricha.
an, Orifice within which the caudal a, Movable (hinged) sclerite (sosegments are withdrawn.
of Oviedo, on the river Caudal, a tributary of the Nalon.
This type of caudal fin must be regarded as secondary, the Gadidae being, no doubt, derived from fishes in which the homocercal fin of the typical Teleostean had been lost.
long) consists of a subcylindrical body and a caudal appendage.
Apart from these characteristics, the most distinctive feature of earwigs is the presence at the end of the abdomen of a pair of pincers which are in reality modified appendages, known as cercopods, and represent the similar limbs of Japyx and the caudal feelers of Campodea and some other insects.
The development of its scutes and spines varies exceedingly, and specimens may be found without any lateral scutes and with short spines, others with only a few scutes and moderately sized spines, and again others which possess a complete row of scutes from the head to the caudal fin, and in which the fin-spines are twice as long and strong as in other varieties.
Macmillan & Co., Ltd.) b, bristle; cs, caudal spine; ph, pharynx; s s', the spines on the two segments of the proboscis; sg, salivary glands; st, stomach.
round the proboscis and in the two posterior caudal spines.
- Though concealed within the bivalved shellcover, the mouth-parts are nearly as in the Gymnophylla, but the flexing of the caudal part is in contrast, and the biramous second antennae correspond with what is only a larval character in the other phyllopods.
- The body, seldom in any way segmented,, is wholly encased in a bivalved shell, the caudal part strongly inflexed, and almost always ending in a furca.
It was observed that ten of the caudal vertebrae of the latter skeleton bore tooth marks and grooves corresponding exactly with the sharp pointed teeth in the jaw of the carnivorous dinosaur.
The mid-region of the body, composed of jointed segments, is followed by a larger or smaller region consisting of fused segments and termed the pygidium or caudal shield, which in some cases is as large as the head-shield itself, in other cases much smaller.
Under the pygidium or caudal shield the appendages were much shortened, and their main branch consisted of broader and flatter segments than those of the preceding limbs.
The variety most highly prized has an extremely short snout, eyes which almost wholly project beyond the orbit, no dorsal fin, and a very long threeor four-lobed caudal fin (Telescope-fish).
The lower (caudal) part of the furrow-like outgrowth remains hollow and forms the gall bladder.
The gall-bladder (g), when it is present, is always situated on the caudal surface or in the substance of the right central lobe.
In the loss of the last upper molar, the Liu-Kiu rabbit approximates to the picas, as does the tailless rabbit in the abortion of its caudal appendage.
The most important is the Nalon or Pravia, which receives the waters of the Caudal, the Trubia and the Narcea, and has a course 1 Servius, in speaking of it as oppidum, must be referring to the post-station.
The early larval stage of the " Lobster Moth " (Stauropus fagi), for example, presents a general resemblance, due to a combination of shape, colour, attitude and movements, to black ants, the swollen head and the caudal disk with its two tentacles representing respectively the abdomen and antenna-bearing head of the model.
There is a single unsegmented nerve-cord which runs along the ventral middle line and enlarges posteriorly into a caudal ganglion and anteriorly in a ganglion, the brain, which is not supra-oesophageal.
However, the fact that various recent birds possess the same kind of caudal skeleton, likewise without a pygostyle, although reduced to at least 13 vertebrae, shows that the two terms do not express a fundamental difference.
Io -r I cervical, 12-11 thoracic, 2 lumbar, 5-6 sacral, and 20 or 21 caudal, with a total caudal length of the Berlin specimen of 7 in.
The dorsal crest is continued round both extremities, becoming expanded to form the rostral fin in front and the caudal fin behind.
Even in external view, careful inspection will show that the body is divisible into four regions, namely, cephalic, atrial, abdominal and caudal.
In Asymmetron the caudal region is remarkable for the curious elongation of the notochord, which is produced far beyond the last of the myotomes.
The number of vertebrae is - in the cervical region 7, dorsal 13, lumbar 6, sacral 2, caudal varying according to the length of the tail, but generally from 21 to 25.
It may be supposed to have approximated, in general form, to A pus, with an elongated body composed of numerous similar somites and terminating in a caudal furca; with the post-oral appendages all similar and all bearing gnathobasic processes; and with a carapace originating as a shell-fold from the maxillary somite.
Thelyphonus and its allies, however, have a long tactile caudal flagellum, the homologue of the scorpion's sting; but its exact use is unknown.
A long dorsal fln, high and pointed anteriorly, runs along nearly the whole length of the back; the caudal is strong and deeply cleft.
The vertebral column consists of seven cervical, eighteen dorsal, six lumbar, five sacral, and fifteen to eighteen caudal vertebrae.
The caudal vertebrae, except those quite at the base, are slender and cylindrical, without processes and without chevron bones beneath.
Also he gives two different reckonings of the segmentation, counting first eleven body segments without the caudal furca (p. 40), and then the caudal furca as itself the eleventh segment (p. 41).
Caudal vertebrae fused into a urostyle or coccyx.
B, Caudal vertebra of Archegosaurus.
Feeding soft, textured foods tends to reduce mechanical abrasion especially in the buccal surface of the caudal cheek teeth.
anaesthesia potential problems of caudal anesthesia for circumcision such as leg weakness or difficulty with micturition.
In my practice, I limit caudal epidural anesthesia to children who are still small enough for their mothers to carry.
A further series from Zimbabwe reported 500 pediatric caudal epidural anesthetics.
caudal epidural anesthesia to children who are still small enough for their mothers to carry.
caudal fin; the second spot on the side is less clear.
caudal vertebra was found.
caudal anesthesia presenting to their service.
caudal epidural injection can be done first helping to numb the area.
The infection has reached the fish's body A extreme example of fin rot of the caudal fin.
They have an elongated body form with a thin caudal peduncle.
Lower canines cross the floor of the oral cavity, from buccal to medial, with the apex located at the caudal mandibular symphysis.
Also in 1996, another caudal vertebra was found.
- Degenerate atracheate parasitic forms with the body produced posteriorly into an annulated caudal prolongation, and the 3rd, 4th, 5th and 6th pairs of appendages short and only three-jointed.
On the other hand, the two limbless segments that precede the caudal furca are decidedly non-malacostracan.
I, 2), in which the spinal cord rests on the notochord, which persists uninterrupted and is surrounded by three bony elements in addition to the neural arch: a so-called pleurocentrum on each side, which appears to represent the centrum proper of reptiles and mammals, and an intercentrum or hypocentrum below, which may extend to the neural arch, and probably answers to the hypapophysis, as it is produced into chevrons in the caudal region.
These larvae are minute oval creatures with a comparatively short apically fringed caudal prolongation and furnished with two pairs of short two-clawed processes, which may represent the limbs of anthropods and possibly the two pairs of legs found in Acari of the family Eriophyidae.
The caudal vertebrae vary from a rudimentary condition in the guinea-pig to a great size in the jumping-hare and prehensile-tailed porcupines.
A third division, the Tartarides, a subordinate group of the Uropygi, contains minute Arachnida differing principally from the typical Uropygi in having the caudal process unjointed and short.
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