(n.) The lowest group of Vertebrata, including the amphioxus, in which no skull exists.
Example Sentences:
(1) We were able to demonstrate the presence of c-src related sequences in Acrania, Cyclostomata, cartilagenous and bony fish.
(2) Bony anomalies encountered in the 'no neck' form of Klippel-Feil syndrome (KFS) are a wide, short, fused, bifid, retroflexed spinal canal; craniolacunia, cranium bifidum, and acrania.
(3) A suggested fetal anencephaly on routine office ultrasound examination resulted in a diagnosis of fetal acrania when targeted ultrasonography was performed by a consultant.
(4) This case supports the hypothesis that acrania is a severe form of aplasia cutis congenita and is within the spectrum of Adams-Oliver syndrome.
(5) The foetus had a condition known as acrania, which meant that its skull had not closed over the brain.
(6) Apart from two autopsy specimens (Cantrell's pentalogy with acrania and extensive abdominoperineal omphalocele) whose associated malformations appeared to be incompatible with life, all foetuses and newborns apparently had usual perinatal causes of death.
(7) A 10-year-old male with acrania, distal limb anomalies, and abnormal arterial and venous cranial blood vessels is reported.
(8) However, morphologically anencephaly is a heterogeneous group made up of at least four major morphologic types-anencephalus craniorachischisis, anencephalus acrania, microcephalus acrania and microcephalus craniorachischisis.
(9) Maternal serum AFP values before and after induced abortion in a case of acrania and spina bifida demonstrated the value of serial maternal serum AFP quantitations in cases of suspected neural tube defects (NTD).
(10) It is proposed that the diagnosis of acrania requires assessment of both parents and proband to assess other manifestations of vascular disruption in order to provide accurate genetic counselling.
(11) First in number ranked the malformations of the legs and feet (curved legs and feet micromelia, achondroplasia), followed by head deformities (acrania), etc.
(12) It is often difficult to distinguish between anencephaly, acrania, and amniotic band sequence prenatally, but postnatal differentiation is imperative for accurate risk assessment in genetic counseling.
(n.) A genus of living Brachiopoda; -- so called from its fancied resemblance to the cranium or skull.
(pl. ) of Cranium
Example Sentences:
(1) Forty-eight cranial metric and twenty-five cranial non-metric traits were scored on the left side of adult male crania from four North American Indian populations.
(2) Moreover, they are the most complete crania of such great age discovered on the Asian mainland.
(3) Ninety crania of Italian and Austrian males, 25-32 years old, coming from the ossurary of Custoza have been examined, (in all 2205 teeth) to determinate the presence and the frequency of dehiscences and fenestrations.
(4) There is an apparent allometric effect on foramen position, but not on inclination, so that larger crania in the modern human and Pan paniscus samples tend to have more posteriorly situated foramina.
(5) Non-metrical variants of the human cranium have been studied in 186 London crania of known age, sex and date of birth.
(6) The male value resembles that of other Negro groups, while the female value is somewhat higher than the value for Negro crania as a whole.
(7) Meaningful comparisons of vertebrate crania must include these developmental processes.
(8) The possible causes for this form of a low sexual dimorphism are as follows: A negative secular trend, with the assumption that the Zulu crania were larger than those of the reference populations of African Negroids before the start of the secular trend change.
(9) Mean data were reported for stages of crown rump length (CRL) and maturation of the fetal cranial base (MSS), usable as reference in assessment of pathological fetal crania in reports and autopsy procedures.
(10) Previous studies on North and South Dakota American Indian crania of about the same time period did not demonstrate any stapedial fixation in 2,600 burials (4,064 temporal bones), 1,416 of which were over 16 years of age at death.
(11) The location of the foramen magnum, with respect to the longitudinal axis of the cranium, and its orientation with respect to the Frankfurt Horizontal, have been studied in a total of 328 modern human and Pan crania.
(12) We were able to show substantial heterogeneity among crania from Leavenworth.
(13) We used facial measurements from 179 adult crania to address the systematics of this group and included a related species that is known to include multiple subspecies.
(14) Mandibulodental relations were evaluated in a sample of 34 adult Lycaon pictus crania (18 males, 16 females).
(15) An alternative to this maize dependence hypothesis is suggested by the analysis of 432 crania from the nonagricultural, fish-dependent population of the Channel Island area of southern California.
(16) This method is applied to the analysis of sexual differences in the midsagittal outline of recent (1880s-1920s) Japanese crania.
(17) Sagittal cuts were made in 91 crania from Wistar rats (44 males and 47 females) at 8, 15, 30 and 60 days of age.
(18) This paper presents information on the cranial and dental anomalies observed in the crania of three species of platyrrhine monkeys collected in Nicaragua.
(19) The condylar position index, condylar angle and the area of insertion of the nuchal musculature corrected for condylar position, direction of muscle pull and skull size were determined in Homo sapiens, Gorilla, Pan and the casts of two Neanderthal and two australopithecine crania.
(20) The microscopic structure of bone of the brow region was studied in adult human crania showing the vermiculate surface pattern, and in immature nonhuman primates with an areolar surface.