How To Use Caudal In A Sentence
-
Most teleost fishes possess a complex set of intrinsic caudal fin muscles that have only rarely been studied experimentally.
-
On the other hand, it is very probable that this subcaudal extension of the fins is merely a result of the posterior extension and enlargement of these fins which has taken place in the evolution of the adaptation.
Hormones and Heredity
-
They have distinct black markings on the ends of their fins, particularly the first dorsal and caudal fins.
-
It has continuations cranially along the uterus and caudally along the vagina.
In Defense of the Hysterectomy
-
It can be distinguished from congeners in having a combination of: postanal length 36·6-44·8 % standard length; pectoral-fin length 14·4-25·9% head length; 34-38 dorsal spines; 42-46 caudal vertebrae; 78-83 total vertebrae; brown background colour without or with only a limited and scattered dark brown reticulate pattern.
Practical Fishkeeping
-
The most characteristic feature is the long caudal bristle, which is extremely delicate and about two-thirds the length of the body.
Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901
-
Eggs and milt are ejected by sudden lashings of the caudal fin.
-
The tail, or caudal fin, is large and sickle-shaped, to give short, rapid bursts of speed.
-
This high-principled lophobranch is so careful of its callow and helpless young that it carries about the unhatched eggs with him under his own tail, in what scientific ichthyologists pleasantly describe as a subcaudal pouch or cutaneous receptacle.
Science in Arcady
-
Most investigation into such an antipredatory benefit has focused on caudal autotomy in vertebrate taxa.
-
It suggests the "Enduap" (rondache) of ostrich-plumes worn by the Tupi-Guarani barbarians of the Brazil, the bunchy caudal appendages which made the missionaries compare them with pigeons.
Two Trips to Gorilla Land and the Cataracts of the Congo Volume 1
-
This high-principled lophobranch is so careful of its callow and helpless young that it carries about the unhatched eggs with him under his own tail, in what scientific ichthyologists pleasantly describe as a subcaudal pouch or cutaneous receptacle.
Science in Arcady
-
Varied with a few whitish cross bands; last series of scales and beneath whitish ventral shield black in front; subcaudal plates, one-rowed; throat scaly; chin shields two pairs; eyes lateral, pupil round; front pair of frontal plates short; nostrils lateral, in two small shields, loreal shields none; one large anterior, and two moderate posterior ocular shields; lower temporal shield in the labial ones.
Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 2
-
Drosophila mutants, including bicaudal, in a review by Ted Wright (1971).
Christiane Nüsslein-Volhard - Autobiography
-
A useful landmark are the paired arteries that arise from the aorta caudal to the kidney, the coeliac and cranial mesenteric arteries.
-
According to the bionic principle, a wireless fish-like swimming micro robot using GMF actuator as a caudal fin has been developed.
-
It can be diagnosed by various details of the premaxilla, nasal, and dentary in the skull and the shape of the distal caudal vertebrae.
-
P. conybeari, based on caudal vertebrae, chevrons and a large and gracile humerus, is a basal titanosauriform, perhaps a brachiosaurid.
Archive 2006-02-01
-
I published a paper on bicaudal, but I did not easily find a job.
Christiane Nüsslein-Volhard - Autobiography
-
The red spots in the caudal peduncle region are one of the unique characteristics of this species.
-
caudal fins
-
The precise values – the center of the propulsive strokes, the angle at which the caudal fin is held, the point of its two-dimensional visual field at which distant points approach without changing their position on that field – cannot be genetically determined, since there are too many factors involved, including all the factors that determine where the center of mass is.
Matthew Yglesias » Influential Books
-
The first caudal vertebra is identified as the most anterior vertebra that has paired haemal flanges extending along the ventral surface of the centrum.
-
The only interesting maternal mutant known at that time was bicaudal, which had been discovered by Alice Bull, and described in 1966.
Christiane Nüsslein-Volhard - Autobiography
-
They have no eyelids, and all species have four fingers on each forelimb, five toes on each hind limb, and caudal fins.
-
The caudal fin has dark bands at basal and subterminal positions.
-
Normally it extends caudally over the superior colliculi of the midbrain.
-
Those produced by the hypochordal lobe of the caudal fin of selachians and early bony fishes have been studied in detail.
-
Based on motion similarity of micro robot drive fin and fish caudal fin, this paper discusses fish muscle hydrodynamics, and analyzes propulsion force produced by biomimetic fish-like drive fin.
-
The subcaudal flaps were perfectly motionless and tightly pressed between the base of the tail and the surface of support, so that any movement of them was impossible.
Hormones and Heredity
-
The pythons closely resemble the true boas, but have the subcaudal plates double; the muzzle is sheathed with plates, and those covering the mouth of the jaws have pits.
Forest & Frontiers
-
Wing membrane from base of toes; lobule at the heel very narrow and long; last rudimentary caudal vertebra free; fur of the body, wings, and interfemoral membrane pale buff throughout.
Natural History of the Mammalia of India and Ceylon
-
In one of these species, for the most numerous caudal cluster in the reticular formation, NADPH diaphorase labels a dorsal sub-group in Xenopus which is thought to correspond to a well-described GABAergic population, the mhr neurons.
-
As indicated by the morphological description above, the postcranial skeleton of Haasiophis (and Pachyrhachis) generally corresponds to an ophidian morphology with no apparent regionalization of the precaudal (precloacal) axial skeleton.
-
Their caudal fins (tails) are homo cercal that is the upper and lower lobes are more or less the same size as opposed to the tail of the tiger shark for example. therefore when swimming near the surface the tail may not show.
UnderwaterTimes.com News of the Underwater World
-
One of the most prominent characteristics of early vertebrates is the elongate caudal fin bearing fin rays.
-
The stiff peduncle, in turn, functions as a rigid base for the flexible insertion of the caudal fin.
-
As a result, many boxfishes cannot bend their bodies anterior to their caudal peduncles, and almost all of their swimming movements derive from complex combinations of motions of their five fins.
-
The lightest portion, whose bubbles are of the greatest tenuity, which is white on account of its finer porosity, rises to the surface, where the caudal filaments sweep it up and gather it into the snowy ribbon which runs along the summit of the nest.
Social Life in the Insect World
-
The bronchial courses caudally, beneath the arch of the azygos vein, to the right bronchus, where it follows the posterosuperior border of the bronchus to enter the lung.
-
The muscle is swung around and sutured to the caudal portion of the defect at the pectoralis major's origin and at the aponeurosis of the external oblique muscle.
-
Colours indicate the different vertebral regions: yellow, cervical; dark blue, thoracic; light blue, lumbar; green, sacral (in lizard) or cloacal (in snake); red, caudal.
How to make a snake - The Panda's Thumb
-
Slow-worms are like many other squamates in being able to drop the tail voluntarily by contracting muscles (this is known as caudal autotomy), but they do this more than is usual, with most individuals having autotomised their tails several times.
Archive 2006-05-01
-
One of the most prominent characteristics of early vertebrates is the elongate caudal fin bearing fin rays.
-
There is a well-developed atlas and the caudal vertebrae can be distinguished from the trunk vertebrae by the presence of hemal arches.
-
Cervical papillae occur anteriorly in the oesophageal region, and caudal papillae posteriorly at the tail.
-
MUS AEQUICAUDALIS. of Hodgson, described in Horsfield's Catalogue as pure dark brown above, with a very slight cast of rufescent in a certain aspect; underneath from the chin to the vent, with interior of thighs, yellowish-white; ears nearly an inch long; head proportionately long
Natural History of the Mammalia of India and Ceylon
-
McGown's colleagues regarded him as a highly skilled anaesthetist and a pioneer in the technique of injecting morphine into the spine of patients (known as caudal anaesthesia) to reduce post-operative pain.
ANC Daily News Briefing
-
The dorsal and pectoral fins have hard spines whereas the other rays are soft like the anal and caudal fins.
-
Thus some bolbophyl, for example, have caudal appendages to their sepals, as in Masdevallias, and on the other hand some Masdevallias have their labellums hinged and oscillatory, which is so commonly the case as to be "almost characteristic" in the genus Bolbophyllum or Sarcopodium.
Scientific American Supplement, No. 384, May 12, 1883
-
It is a uniform bright yellow and has a large lyre-shaped caudal fin.
-
Using these techniques, I recovered and investigated the original bicaudal mutant.
Christiane Nüsslein-Volhard - Autobiography
-
The terms anterior or ventral, and posterior or dorsal, are employed to indicate the relation of parts to the front or back of the body or limbs, and the terms superior or cephalic, and inferior or caudal, to indicate the relative levels of different structures; structures nearer to or farther from the median plane are referred to as medial or lateral respectively.
Introduction
-
Dog − Following premedication, patient administered with general anesthetic, and restrained on its back − An area from xiphisternum to pelvis is shaved and surgically prepped − Sterile drapes are applied − In cat, incision is made approx. half-way between the umbilicus and the pelvis − In dog, incision is made slightly more cranially - beginning at the umbilicus and extending caudally − Incised: skin, subQ tissue, peritoneum −
Recently Uploaded Slideshows
-
Each trochlear nerve makes its exit through the caudal tectum (the dorsal portion of the midbrain), immediately lateral to the frenulum of the superior medullary velum.
-
Some muscles are more effective in the rostral airway, whereas others exert their greatest effect in more caudal regions.
-
Carapace smooth, rather convex, and with three keels above; the beak, longly produced, ending in a spine, simple on the side and produced into a keel on each side behind; the central caudal lobe rather narrow, indistinctly divided in half, and like the other lobes flexile at the end, the lateral lobes with
Journals of expeditions of discovery into Central Australia, and overland from Adelaide to King George's Sound, in the years 1840-1
-
Frozen brains were sectioned coronally (50 µm) on a cryostat microtome, starting from the caudal pole of the cortex and continuing rostrally throughout the entire extent of the hippocampal formation.
PLoS ONE Alerts: New Articles
-
In the posterior precaudal and anterior caudal vertebrae rib shafts become hairlike structures.
-
In the male, the genital tubercle is located adjacent to and caudal to the umbilicus, whereas the genital tubercle in the female is located just ventral to the tail.
-
caudal appendage
-
It was a condition chiefly confined to the caudal end, the sarcode having became diffluent, hyaline, and intensely rapid in the protrusion and retraction of its substance, while the nuclear body becomes enormously enlarged.
Scientific American Supplement, No. 470, January 3, 1885
-
Scales from mid-body to the tail and the caudal and dorsal fins have black spots.
-
Its casque was described as intermediate between that of C. unappendiculatus and C. bennetti, being compressed rostrally but mound-like caudally.
Archive 2006-02-01
-
Body cylindrical, scales small; ventral shields brown, rounded; tail rather short, tapering; subcaudal plates two, round.
Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 2
-
Two to three scales bear a pore behind the inversion line until the lateral line ends at a caudal fin ray.
-
Male swordtails in the genus Xiphophorus display a conspicuous ventral elongation of the caudal fin, the sword, which arose through sexual selection due to female preference.
-
EMG signals show high amplitude spikes both rostrally and caudally, with no contralateral muscle activity and no detectable rostrocaudal lag at the onset of muscle activity.
-
“It’s actually called a vestigial caudal appendage,” Helena said, as if that would be helpful.
Balancing in High Heels
-
The subcaudal prolongations of the fins are therefore not necessary to the adhesion, nor to the pumping action, of the muscles and fins, which went on as before.
Hormones and Heredity
-
The pylorus, _py_, is wide and, as has been noted in connection with figure 7, is situated far cephalad to the caudal end of the stomach.
Development of the Digestive Canal of the American Alligator
-
The decapod remains were located between 0.5 and 3.0 m from a titanosaurian sauropod dinosaur caudal vertebra.
-
Eyelightfish have a blunt snout, a large upturned mouth, a deeply forked caudal fin, and a light-emitting organ, called a photophore, under each eye.
-
The caudate lobe, located in the lesser curvature of the stomach caudal to the duodenum, is one of the auxiliary lobes now used as a landmark for gastric surgery.
-
The aft section is a freely flooded articulated robot tail which is terminated with a lunate caudal fin.
-
I'am not at all a paleontologist but I teach human anatomy and I'am very astonished by the spinous process of the vertebrae of the Maiacetus : on the skeleton you show us, spinous process of thoracic and lombar vertebral column are in the opposite angle caudal for thoracic and cranial for lombar : is it normal on dinosaurs ? was this on the original fossile ?
Maiacetus, Part 2
-
Of the surfaces, onethe future flexor surface of the limbis directed ventrally; the other, the extensor surface, dorsally; one border, the preaxial, looks forward toward the cephalic end of the embryo, and the other, the postaxial, backward toward the caudal end.
I. Embryology. 12. The Branchial Region
-
The associated hadrosaur material consists of four caudal vertebrae and a fragmentary dentary.
-
As a consequence of these things, in the backbone of the rabbit there are four regions: the neck, or cervical part, consisting of seven vertebrae, the thoracic part of twelve joined to ribs, the abdominal (also called the lumbar) region of seven without ribs, and the tail or caudal of about fifteen.
Text Book of Biology, Part 1: Vertebrata
-
The spinal cord tapers caudally to become the conus medullaris.
-
A thickened band at the caudal extremity of the inferior pharyngeal constrictor forms the upper esophageal sphincter, or cricopharyngeus muscle.
-
They have no eyelids, and all species have four fingers on each forelimb, five toes on each hind limb, and caudal fins.
-
Like our five fingers, our ear-bones, our rudimentary caudal appendage, or our other 'vestigial' peculiarities, they may remain as indelible tokens of events in our race-history.
Pragmatism
-
The needle is inserted into the interscalene groove in a slightly medial, caudal, and posterior direction to avoid the vertebral column and vascular structures.
-
In general appearance the musang resembles the civet, and it has in some species a sub-caudal glandular fold which contains a secretion, but without the musky odour of civet.
Natural History of the Mammalia of India and Ceylon
-
In brief, cryosections (40 µm thickness) spanning the rostral-caudal extent of the injured cortex were selected and stained with cresyl violet by an experimenter given only the animal's identifier code.
PLoS ONE Alerts: New Articles
-
The caudal fin represents the distal region of the vertebrate axis and is the region of the body where fluid accelerated anteriorly is shed into the surrounding medium.
-
The caput and caudal epididymal regions were separated, and washed with ice-cold physiological saline in order to remove seminal plasma.
-
He would then swim in very tight circles, rapidly vibrating his pectoral and caudal fins.
-
This gland is known as the caudal gland and the depression containing it as the caudal pit or caudal fossa.
Caudal gland of Arion subfuscus
-
I did a detailed study of bicaudal, the most difficult mutant I ever studied, with unbelievable patience and in retrospect little reward.
Christiane Nüsslein-Volhard - Autobiography
-
In anterior view, the three specimens share an enlarged medial condyle, which is expanded medially and cranio-caudally
PLoS ONE Alerts: New Articles
-
Frozen brains were sectioned coronally (50 µm) on a cryostat microtome, starting from the caudal pole of the cortex and continuing rostrally throughout the entire extent of the hippocampal formation.
PLoS ONE Alerts: New Articles
-
It is in the region of the umbilicus, _u_, and the extreme caudal end of the stomach which has been called the gizzard, _gz_.
Development of the Digestive Canal of the American Alligator
-
Ambulocetus is cited as showing that spinal undulation evolved in whales before development of a tail fluke, but that claim was made when only one lumbar and one caudal vertebra were known.
-
At the inferior border of the pubis the two corpora cavernosa separate, bend sharply caudally, laterally, and dorsally, and follow the inferior borders of the inferior rami of the pubic bones.
-
The most striking features described by this component are a relative deepening of the suborbital head region, shortening of the caudal peduncle, and a dorsad displacement of the pectoral fin.
-
The surgeon makes a pair of additional lesions 10 mm to 15 mm rostral and caudal to the first at each ganglion site to destroy the entire fusiform ganglion.
-
The valve area may be enlarged directly by correcting caudal septal deflection or turbinate hypertrophy.
-
The subcaudal fin-flaps are developed in _norvegicus_, most in _punctatus_; each has four rays in _norvegicus_ and _unimaculatus_, six in _punctatus_.
Hormones and Heredity
-
An inversion line is conspicuous at the base of the scaled lobe of the caudal fin.
-
A perpendicular is erected from the end plate of the most caudal vertebrae, whose inferior end plate tilts maximally to the concavity of the curve (inferior end vertebrae).
-
Rainbows also have a red or pink streak that runs from the gill cover to the caudal fin, inspiring their name.
-
Most fish swim by laterally undulating or oscillating their body and propulsive caudal fin.
-
In rats, the CO2-sensitive neurons of the caudal medullar raphe act during sleep only.
-
This caudal fin structure contrasts with the externally symmetrical homocercal morphology present in most teleost fishes such as bluegill sunfish.
-
Otocinclus batmani differs from O. cocama by the abscence of vertically elongated blotches from the dorsal midline to the ventral border of flank, and by lacking a psterior extension of black pigmentation on the base of two central caudal-fin rays.
Archive 2007-01-01
-
Like the latter, there is one caudal bristle, but unlike it there is only one posterior contractile vacuole, while the endoplasm is filled with large granules or food balls.
Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901
-
We recommend that this simple and safe maneuver be introduced routinely after administering a caudal epidural injection, to aid in the eventual outcome of a potentially difficult clinical problem.
-
Analysis of these mutant embryos reveals variable, yet striking defects in caudal specification, limb patterning and axial skeleton formation.
-
The last abdominal segment has two caudal rami which have an unknown function, but are useful in taxonomy for distinguishing between groups of copepods.
Crustacea
-
The dorsal and pectoral fins have hard spines whereas the other rays are soft like the anal and caudal fins.
-
The caudal fin is yellow-brown, and the dorsal spine and long snout are orange.
-
Combined stimulation of the hypoglossus branch and pharyngeal branch of the vagus nerve produced significant interactions between pressure and stimulation in the caudal oropharynx.
-
In green swordtails, the sword consists of a set of ventral fin rays that extend posteriorly beyond the caudal fin margin.
-
They are also odd among salamanders in that some species can drop the tail as a predator-defence mechanism (properly called caudal autotomy), and in that some species have only four toes on the hindfeet.
Archive 2006-06-01
-
Cyprinodon diabolis has 17 pectoral rays, 12 dorsal rays and 28 caudal rays.
-
The caudal fin is yellow-brown, and the dorsal spine and long snout are orange.
-
They have no eyes, antennae, or caudal cerci but have a telson tail, which is common in crustaceans but absent in other hexapods.
-
This area includes the anterior end of the inferior turbinate, the adjacent septum and the caudal edge of the upper lateral cartilages.
-
They also possess a heterocercal caudal fin and remnants of ganoid scales; both are uncommon among extant actinopterygians.
-
This similitude of marking between the rectrices and subcaudals renders the distinction between these two kinds of feathers less sharp than in many other Gallinaceans, and the more so in that two median rectrices are considerably elongated and assume exactly the aspect of tail feathers.
Scientific American Supplement, No. 360, November 25, 1882
-
During jaw retraction, the neck was straightened, thereby pushing the braincase anteriorly as the lower jaw was pulling the prey caudally.
-
The skin of the caudal peduncle is wrapped by dermal fibers at very steep fiber angles.
-
The results indicate that caudal segment of the epididymis has significant absorption funciton.
-
The medial-caudal migration pathway forms the thymopharyngeal tract, which runs from the angle of the mandible to the manubrium of the sternum bilaterally.
-
[41] and it was described as consisting of three subnuclei: pars oralis, pars dorsomedialis and pars caudalis.
PLoS ONE Alerts: New Articles
-
In the caudal region, instead of ribs projecting outwardly, there are haemal processes, inclined downwards and meeting below, forming an arch, the haemal arch, containing the caudal artery and vein -- the vein ventral to the artery -- and resembling the neural arch, which contains the spinal cord above, in shape and size.
Text Book of Biology, Part 1: Vertebrata
-
The bristletails and silverfish both have two long cerci, and between this a caudal appendage.
-
The swelling anterior to the pit and partially covering it is called the caudal horn.
Caudal gland of Arion subfuscus
-
In general, the angular artery originates the lateral nasal artery, which passes medially along the cephalic margin of the lateral crura and gives off caudal branches toward the nostril rim.
-
He would then swim in very tight circles, rapidly vibrating his pectoral and caudal fins.
-
At this point, it gives off collaterals and ascends ipsilaterally in the fasciculus gracilis (or cuneatus) to synapse in the nucleus gracilis (or cuneatus) in the caudal medulla.
Xml's Blinklist.com
-
The new taxon can be easily distinguished from all congeners, except Otocinclus cocama, by having a single, intensely pigmented, vertical W-shaped caudal fin spot and by having three discrete dark bands on dorsum, between the dorsal-fin base and the caudal fin.
Archive 2007-01-01
-
To stimulate the ascending fibres, a segment of right half of the thoracic cord was isolated with the caudal end cut and the rostral end intact.
-
The technique is called caudal anesthesia (kaw'dul; "tail" L) because of the region of the body punctured.
The Human Brain
-
Hodgson states that a horribly offensive yellowish-grey fluid exudes from two subcaudal glands.
Natural History of the Mammalia of India and Ceylon
-
Experimental diabetes mellitus was induced by IV injection (caudal vein) of alloxan monohydrate at a dose of 50 mg/kg body weight.
-
From above, caudal part of sartorius muscle is a suitable bridge to premise of nerve regeneration.
-
Each trochlear nerve makes its exit through the caudal tectum (the dorsal portion of the midbrain), immediately lateral to the frenulum of the superior medullary velum.
-
The caudal fin of the barrelfish is only slightly emarginate instead of deeply forked and its caudal peduncle moderately stout and without keels instead of very slender.
-
El Rio de vicor sesenta leguas qe todo esto se ataja con las tres leguas qe ay dende pasacao al Rio de Vicor y desde el Rio de Vicor asta la punta de los babuyanes ques en la otra caueça de la ysla qe como E diçho es haçia los japones Ay çiento y veynte leguas qe es cosa costa braua corre norueste sueste no esta poblada toda esta tierra, sino en tres Partes. la vna es la prouinçia de valete qe terna ochoçientos yndios, y mas adelante diez leguas, esta casiguran qe aura quinientos yndios esta pte es como los ylocos porqe estan en su contra costa aunqe no se conmunican por ser la tierra muy aspera, y mas adelante esta vn Rio qe llaman alañao ques poblado que ay en el oro y algodon son los proprios indios como los de valete y casiguran en toda esta costa no ay otra poblaçon ninguna asta qe dende la punta de babuyanes buelue la punta leste gueste asta dar en el Rio de cagayan qe es Rio caudaloso y desde la punta esta la voca deste Rio ay doge leguas.
The Philippine Islands, 1493-1803 — Volume 05 of 55 1582-1583 Explorations by Early Navigators, Descriptions of the Islands and Their Peoples, Their History and Records of the Catholic Missions, as Related in Contemporaneous Books and Manuscripts, Showing
-
Wagler has also formed two genera for this single species; and Cuvier formed from a variety of it with subcaudal bands a third genus, under the name of Oplocephalus.
Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 2
-
Gehring at a meeting in 1973 in Freiburg, and had the courage to ask him about bicaudal, and whether he would let me work in his laboratory in Basel.
Christiane Nüsslein-Volhard - Autobiography
-
the caudal end of the body
-
The SPC-II fish robot prototype is an experimental platform which validates the stability, high efficiency and maneuverability by utilizing the caudal fin propulsion mechanism.
-
The morphology is revealing: snakes and lizards have the same regions, cervical (yellow), thoracic (blue), sacral (or cloacal in the snake, which lacks pelvic structures in most species) in green, and caudal or tail segments (red).
How to make a snake - The Panda's Thumb
-
It is helpful to start from one end and work your way to the other, caudally to rostrally for example.
Xml's Blinklist.com
-
Caudal to the temporal lobe is the petrous portion of the temporal bone and the mastoid air cells.
-
The current literature contains several hypotheses about the function of caudal fins of different shapes, and much of this discussion has focused on the difference between heterocercal and homocercal tails.
-
Some anglers call the caudal peduncle area the “wrist,” especially on Atlantic salmon.
Trout and Salmon of North America
-
The grenadiers are characterized externally by having large heads, projecting snouts, and slender bodies that taper to whiplike tails, with no definitely demarked caudal fin.
-
The caudal medulla was exposed to insert a microinjection pipette into the XII nucleus.
-
The duodenum, _d_, makes a U-shaped bend at the side of the stomach, and then, in the region of the caudal edge of the gizzard, _gz_, dips suddenly ventrad and caudad towards the umbilical cord, _u_, where it apparently ends blindly, though this appearance is probably due to an artifact in the embryo from which the reconstruction was made.
Development of the Digestive Canal of the American Alligator
-
The caudal fin and caudal peduncle usually have a pale yellow hue.
-
Their caudal vertebrae differ however, in that those of phlegethontiids exhibit a posterior displacement of the foramina.
-
I presented this and the bicaudal work at the annual symposium of the American Society of Developmental Biology in
Christiane Nüsslein-Volhard - Autobiography
-
This continues to grow caudalward until it opens into the ventral part of the cloaca; beyond the pronephros it is termed the Wolffian duct.
XI. Splanchnology. 3. The Urogenital Apparatus
-
The two cavities in the general mesoderm unite on the ventral aspect of the gut and form the pleuro-peritoneal cavity, which becomes continuous with the remains of the extra-embryonic celom around the umbilicus; the two cavities in the pericardial area rapidly join to form a single pericardial cavity, and this from two lateral diverticula extend caudalward to open into the pleuro-peritoneal cavity (Fig. 54).
I. Embryology. 13. Development of the Body Cavities
-
The first caudal vertebra is identified as the most anterior vertebra that has paired haemal flanges extending along the ventral surface of the centrum.
-
The body of the seventh sometimes bears bilaterally, near its caudal border, a costal pit for the head of the first rib.
-
The body of the fish is measured from the tip of the mouth to the caudal peduncle (end of the body wall muscle).
-
In the photo above, Luis is holding a caudal vertebra from a hadrosaurid that bears a deep score mark across its surface.
Archive 2006-02-01
