What's the difference between postaxial and posterior?
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.
Posterior
Definition:
(a.) Later in time; hence, later in the order of proceeding or moving; coming after; -- opposed to prior.
(a.) Situated behind; hinder; -- opposed to anterior.
(a.) At or toward the caudal extremity; caudal; -- in human anatomy often used for dorsal.
(a.) On the side next the axis of inflorescence; -- said of an axillary flower.
Example Sentences:
(1) Bilateral symmetric soft-tissue masses posterior to the glandular tissue with accompanying calcifications should suggest the diagnosis.
(2) The 38 control fetuses had normal-appearing posterior fossae.
(3) Estimates of the risk probability for each dose level and sacrifice time are found utilizing the sample likelihood as the posterior density.
(4) In 22 cases (63%), retinal detachment was at least partially flattened in the area of the posterior pole of the eye.
(5) Small pieces of anterior and posterior quail wing-bud mesoderm (HH stages 21-23) were placed in in vitro culture for up to 3 days.
(6) These cases show that an examination of the whole neuraxis is as important in patients with midline posterior fossa cysts as it is in patients with developmental syringomyelia or Chiari I malformation.
(7) When the posterior capsule was sectioned, no significant changes were noted in the severity of the sag or the rotation.
(8) A neonate without external malformation had undergone removal of a nasopharyngeal mass containing anterior and posterior pituitary tissue.
(9) An opening wedge osteotomy is then directed posterior-dorsal to anterior-plantar, to effectively plantarflex the posterior aspect of the calcaneus.
(10) Subdural tumors may be out of the cord (10 tumors), on the posterior roots (28 tumors), or within the cord.
(11) All patients with localized subaortic hypertrophy had left ventricular hypertrophy (left ventricular mass or posterior wall thickness greater than 2 SD from normal) with a normal size cavity due to aortic valve disease (2 patients were also hypertensive).
(12) The first patient, an 82-year-old woman, developed a WPW syndrome suggesting posterior right ventricular preexcitation, a pattern which persisted for four months until her death.
(13) Two cases of posterior lumbar vertebral rim fracture and associated disc protrusion in adolescents are presented.
(14) At day 7 MD occupy about 14% area of posterior retina in transverse sections in Campbell rats versus 7% in normal animals.
(15) Histologic examination of the anterior and posterior chambers and the vitreous led to a diagnosis of endophthalmitis caused by Coccidioides immitis infection.
(16) The temperature increased from the anterior to the posterior region on both buccal and lingual sides of both arches.
(17) The observation that phase reversals did not occur in area 29, together with the low incidence of phasic (rhythmic) theta-on cells, suggests that the posterior cingulate cortex does not independently generate type 2 theta.
(18) A 68 year-old man with a history of right thalamic hemorrhage demonstrated radiologically in the pulvinar and posterior portion of the dorsomedian nucleus developed a clinical picture of severe physical sequelae associated with major affective, behavioral and psychic disorders.
(19) 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.
(20) Thirteen patients had had a posterior dislocation with an associated fracture of the femoral head located either caudad or cephalad to the fovea centralis (Pipkin Type-I or Type-II injury), one had had a posterior dislocation with associated fractures of the femoral head and neck (Pipkin Type III), two had had a posterior dislocation with associated fractures of the femoral head and the acetabular rim (Pipkin Type IV), and three had had a fracture-dislocation that we could not categorize according to the Pipkin classification.