What's the difference between macrocephalous and microcephalous?
Macrocephalous
Definition:
(a.) Having a large head.
(a.) Having the cotyledons of a dicotyledonous embryo confluent, and forming a large mass compared with the rest of the body.
Example Sentences:
(1) When examined during gastrulation, however, Xenopus laevis and Rana pipiens macrocephalic embryos produced by GV injection as well as macrocephalic embryos produced by the hybrid cross, Rana septentrionalis female X Rana catesbeiana male, all exhibit alterations in the pattern of gastrulation.
(2) 2 dimensional basicranial form was defined by linear dimensions, Fourier coefficients and medial axis lengths from lateral cephalographs of age-sex matched samples of microcephalics, macrocephalics and normocephalics.
(3) We conclude that enlargement of the subarachnoid space in macrocephalic children is often a benign entity.
(4) They were a 2-year-old, short, macrocephalic and autistic girl, and a 5-year-old boy.
(5) A patient with partial deletion of the long arm of chromosome 11[del(11)(q23.3----qter)] had macrocephalic trigonocephaly, growth and mental retardation, congenital heart defect, and characteristic facial appearance familiar to that of 33 other reported patients with this deletion.
(6) It was based on the digitized mandibular outlines of three age-sexed samples of microcephalics, macrocephalics, and normocephalics.
(7) Evaluation of the derived medial axis lengths and branch point distances indicated complex patterns of mandibular shape contrasts between microcephalics and macrocephalics on the one hand and normocephalics on the other.
(8) Eighteen macrocephalic children with enlargement of the subarachnoid space (ESAS), with or without mild ventricular dilatation, were followed prospectively to a mean age of 56 months.
(9) To clarify indications and limits of computer assisted tomography and positive ventriculography the results of both methods were compared with each other retrospectively in 55 macrocephalic newborns and infants.
(10) The aims of the study were an evaluation of the usual criteria of macrocephaly and the drafting of a differentiated approach to the investigation of macrocephalics.
(11) We report on a family with X-linked hydrocephalus: progressive increase in head circumference (OFC) led to the diagnosis in 3 patients; however, in 5 with normal OFC, the initial diagnosis had been "nonspecific" mental retardation, until identification of relatedness between 3 macrocephalic boys suggested segregation of a major Mendelian gene.
(12) A better estimation of the intracranial volume of the macrocephalic children was obtained by means of the "Utrecht Head Measure", the product of OFC-squared and the head height.
(13) All six patients with severe OI (type III) had cortical atrophy on computed tomographic scan and three were also macrocephalic.
(14) Age is positively correlated with the percentage of microcephalic, macrocephalic and duplicate heads and coiled tails and negatively correlated with the percentage of no tail spermatozoa: these age-related variations are involved in the 90th percentile.
(15) Ventriculocentesis of the macrocephalic fetus was performed and abortion induced.
(16) Of six affected children, two had hyperbilirubinaemia, one muscular hypotonia, one was underweight for gestational age, one was macrocephalic, and one had supraventricular extrasystoles.
(17) One is a severely retarded, macrocephalic boy, who had the characteristic laboratory findings of Canavan disease and progressive leucodystrophy on neuro-imaging.
(18) Comparison of the clinical and radiologic characteristics of subarachnoid widening in macrocephalic children and in normocephalic or microcephalic children showed no significant differences.
(19) Of the 12 reported patients with deletions limited to band 13q14, seven had normal intelligence and five were macrocephalic.
(20) The data indicate that the shape contrasts between the mandibles of macrocephalics and microcephalics are more complex than traditionally envisaged and emphasize the need for further study to ascertain the effect of genetic and environmental influences on mandibular form.
Microcephalous
Definition:
(a.) Having a small head; having the cranial cavity small; -- opposed to megacephalic.
Example Sentences:
(1) In a family with microcephalia vera, not only the 3 microcephalic probands, but also their healthy mother showed a significantly increased rate of spontaneous structural chromosomal aberrations in cultures of lymphocytes of the peripheral blood.
(2) The human Accutane dysmorphic syndrome includes rudimentary external ears, absent or imperforate auditory canals, a triangular microcephalic skull, cleft palate, depressed midface, and anomalies of the brain, jaw, and heart.
(3) A case report of microcephalic twins born to a hithertoo undedected phenylketonuric mother is given.
(4) The other patient, who was dystrophic, microcephalic, and had megaloblastic anemia died at age 4 months.
(5) 2 dimensional basicranial form was defined by linear dimensions, Fourier coefficients and medial axis lengths from lateral cephalographs of age-sex matched samples of microcephalics, macrocephalics and normocephalics.
(6) Both the phenylketonuric offspring and her nonphenylketonuric sib were microcephalic at birth and had congenital anomalies, esophageal atresia in the former and congenital dislocation of the hip in the latter.
(7) Because some families showing autosomal dominant microcephaly have normal intelligence, psychometric evaluation of microcephalic children and their microcephalic relatives is important for genetic counseling.
(8) The deficits in synapse-to-neuron ratios seen in ochratoxin A-induced microcephalic brain seemed to result from a reduced dendritic growth.
(9) Seckel syndrome is only one of a group of low birth weight microcephalic dwarfism and careful attention should be paid to fulfillment of the major criteria defined by Seckel before the diagnosis is made.
(10) She was bed-ridden, nonverbal, microcephalic and blind.
(11) In the microcephalics, AFCX 1325 and AFCX 921 were superior to CBZ, which in turn, was superior to placebo.
(12) The head volume was measured directly in at least one adult microcephalic member from five of the six families, and lower values were obtained in these subjects than in control subjects.
(13) Induced delivery resulted in a microcephalic child who died after 18 min.
(14) Basing on two case reports with four microcephalic foetuses, the antenatal problems of sonographic diagnosis are explained.
(15) Both were significantly lower in occurrence in the microcephalic rats independent of treatment.
(16) Regarding seven microcephalic patients in the retrospective study congenital CMV-infection could be excluded in four cases.
(17) Four of the six Zunis with CF are also microcephalic, a finding not previously noted in CF patients.
(18) Both the Snell dwarf mouse (dw) and the growth hormone-deficient Little mouse (lit) exhibit a microcephalic cerebrum with hypomyelination, retarded neuronal growth, and underdevelopment of axons and dendrites.
(19) All patients with distal 14q deletions were developmentally delayed, most were microcephalic and failed to thrive.
(20) It was based on the digitized mandibular outlines of three age-sexed samples of microcephalics, macrocephalics, and normocephalics.