What's the difference between caudal and postaxial?
Caudal
Definition:
(a.) Of the nature of, or pertaining to, a tail; having a tail-like appendage.
Example Sentences:
(1) In the caudal spinal trigeminal nucleus (Vc), the collaterals of one half of the periodontium afferent fibers terminated mainly in lamina V at the rostral and middle levels of Vc.
(2) In addition, lightly immunostained cells were distinguished in the caudal portion of the hypothalamic arcuate nucleus, area of tuber cinereum, retrochiasmatic area, and rostral portion of the paraventricular thalamic nucleus after colchicine treatment.
(3) While the heaviest anterogradely labeled ascending projections were observed to the contralateral ventral posterolateral nucleus of the thalamus, pars oralis (VPLo), efferent projections were also observed to the contralateral ventrolateral thalamic nucleus (VLc) and central lateral (CL) nucleus of the thalamic intralaminar complex, magnocellular (and to a lesser extent parvicellular) red nucleus, nucleus of Darkschewitsch, zona incerta, nucleus of the posterior commissure, lateral intermediate layer and deep layer of the superior colliculus, dorsolateral periaqueductal gray, contralateral nucleus reticularis tegmenti pontis and basilar pontine nuclei (especially dorsal and peduncular), and dorsal (DAO) and medial (MAO) accessory olivary nuclei, ipsilateral lateral (external) cuneate nucleus (LCN) and lateral reticular nucleus (LRN), and to a lesser extent the caudal medial vestibular nucleus (MVN) and caudal nucleus prepositus hypoglossi (NPH), and dorsal medullary raphe.
(4) Other fusiform cells of the cPVN are oriented in a rostral-caudal plane and are situated more medially in this subdivision.
(5) Nonetheless, anatomical continuity was restored at the site of injury, axons projected across this region, and rostral spinal and brainstem neurons could be retrogradely labelled following HRP injections administered caudal to the lesion.
(6) Injection of the tracer substance wheat germ agglutinin-horseradish peroxidase (WGA-HRP) directly into the basilar pontine nuclei using a ventral surgical approach resulted in the labeling of somata in many areas both rostral and caudal to the basilar pons.
(7) Cytochrome oxidase histochemistry revealed patchy patterns of the enzyme activity in transverse sections through the caudal part of the ventral subnucleus of the principal sensory trigeminal nucleus, interpolar spinal trigeminal nucleus, and layer IV of the caudal spinal trigeminal nucleus in the cat.
(8) Zebrin II-negative Purkinje cells are present in a continuous region encompassing the rostromedial part of the valvula, the lobus transitorius, lobe C1 and the ventral part of lobe C2, and in a small, lateral zone of the posterior part of the caudal lobe.
(9) At 3 weeks of age the volume of both smooth muscle and axons within the caudal artery of SHR and WKY was not significantly different.
(10) Electrical stimulation of the contralateral superior colliculus evoked monosynaptic field potentials which were largest in the caudal pontine reticular formation rostral to the abducens nucleus and in the rostral part of the medullary reticular formation caudal to the abducens nucleus.
(11) Labeled fibers and terminal-like structures were found 8-13 segments rostral and 1-5 segments caudal to the injected DRGs.
(12) Caudal block is particularly useful and, even when given in large doses, does not give rise to high plasma concentrations.
(13) In order to verify whether or not all the POMC neurons are equally affected by sex steroids, we arbitrarily divided the arcuate nucleus rostro-caudally into four equal portions and used an in situ hybridization technique to evaluate POMC gene expression in these different regions of the arcuate nucleus in the female rat.
(14) Intracellular recordings were made from zebra finch hyperstriatum ventrale pars caudale (HVc) neurones in in vitro slice preparations.
(15) The results indicate that NTS neurons containing a GRP-like peptide connect the rostral and caudal regions of the dorsal vagal complex by way of longitudinal nerve tracts descending NTS and TS.
(16) Very few receptors were located in the caudal regions of the rumen whereas the cranial sac is richly supplied with tension receptors.
(17) Cells of type-4 occupy the caudal part with a dorsorostral extension.
(18) This flap is formed by a triangle-shaped excision combined with cranial and caudal slitting of the periosteum.
(19) Injections in caudal and dorsal parts of VL labeled cells in ventral parts of the dentate nucleus and interpositus posterior nucleus.
(20) This spatial relationship of the endocrine cells suggests a functional cell interaction between glucagon and somatostatin cells in the cranial stomach and between gastrin and somatostatin in the caudal parts of the stomach.
Postaxial
Definition:
(a.) Situated behind any transverse axis in the body of an animal; caudal; posterior; especially, behind, or on the caudal or posterior (that is, ulnar or fibular) side of, the axis of a vertebrate limb.
Example Sentences:
(1) The Greig cephalopolysyndactyly syndrome is an uncommon dysmorphic syndrome characterized by preaxial and postaxial polysyndactyly and minor craniofacial anomalies.
(2) The observations gathered in mouse embryos collected 4, 24 and 48 hours after the administration of a teratogenic doses of acetazolamide to their pregnant mothers strongly suggest that the resulting postaxial defects in the anterior limbs can be the result of a selective perturbation of the inductive process responsible for the genesis of the apical ectodermal ridge, probably secondary to a transient acidosis.
(3) A new "postaxial polydactyly-progressive myopia" syndrome of autosomal dominant inheritance is delineated on the basis of nine affected persons in four generations of one family.
(4) This maps Hox-1 and Hox-1.7 close to two mouse loci that affect morphogenesis, postaxial hemimelia (px) and hypodactyly (Hd).
(5) Eleven patients with hypoplasia and partial or complete aplasia of the ulna (examples of a complex spectrum of postaxial forearm and hand abnormalities) were reviewed.
(6) The triad of the syndrome consists of occipital encephalocele, polycystic kidneys and postaxial polydactyly.
(7) Independent of the degree and location (pre- or postaxial) of the anomaly the creation of one single unit, which corresponds to the functional as well as to the cosmetical demands is the main purpose of the operative correction.
(8) Ectrodactyly induced by ethanol was primarily of the forelimb and exclusively postaxial.
(9) Clinical and genetic aspects of the postaxial acrofacial dysostoses are discussed.
(10) The postaxial region with the hypoplastic AER became defective.
(11) We report mother and son with the ulnar-mammary syndrome type Pallister: both had postaxial polydactyly in one upper limb and absence or hypoplasia of the axillary apocrine glands bilaterally.
(12) These disorders have generally been separated on the basis of their limb anomalies into preaxial, postaxial, lethal, and atypical types.
(13) In addition to facial changes strikingly similar to that of the Teacher-Collins syndrome and a cleft soft and hard palate, symmetrical postaxial limb deficiencies with absence of the fifth digital rays in both the upper and lower limbs were present.
(14) Male and female second cousins with short limbs, postaxial polydactyly and cardiac malformations are described.
(15) There was also postaxial polydactyly, flexion contractures of the digits, hypotonia, and a congenital heart anomaly.
(16) Postaxial ectrodactyly was more frequent in the forepaws, and sidedness was not significant.
(17) Postaxial deficiencies observed in 12-15-day embryos and affecting preferentially the right forelimbs were classified in nine morphological types according to increasing amounts of missing parts.
(18) All cases of both preaxial and postaxial (polyaxial) polydactyly were inherited and bilateral.
(19) Laryngeal cleft may be a component manifestation of several syndromes, eg, the G syndrome, and the Pallister-Hall syndrome of congenital hypothalamic hamartoblastoma, hypopituitarism, imperforate anus, and postaxial polydactyly.
(20) Postaxial polydactyly was predominently right sided and mostly involved the forepaws.