(a.) Having a crest of feathers or hair upon the head.
(a.) Bearing any elevated appendage like a crest, as an elevated line or ridge, or a tuft.
(imp. & p. p.) of Crest
(a.) Having a crest.
Example Sentences:
(1) Hence, the absence of NGF receptors on premigratory neural crest and early migratory neural crest cultures was not due to enzymatic alterations of the receptor.
(2) Predominantly observed defects included neural crest cells in ectopic locations, both within and external to the neural tube, and mildly deformed neural tubes containing some dissociating cells.
(3) Our results suggest that cAMP may be an important regulator of phenotypic expression in at least some neural crest cell lineages.
(4) Neural crest cells give rise to various essential tissues in vertebrates.
(5) In the present study, we have compared the phosphorylation state of the fibronectin receptor in motile neural crest and somitic cells, in stationary somitic cells, and in Rous-sarcoma virus transformed-chick embryo fibroblasts, using immunoprecipitation following metabolic labeling.
(6) The staining method consisted of sequential treatment of slides with crest serum, fluorosceinated goat-antihuman and swine-antigoat antibodies, and propidium iodide.
(7) The participation of neural crest cells in development of the dermal skeleton is discussed by way of the repartition of the odontods within the pectoral fin.
(8) The talus was revascularized with a vascularized corticocancellous iliac crest bone graft.
(9) When the method proposed by Trela (1975) is applied, thin layers of the petrous crest are chiselled out until the common crus of the superior and posterior semi-circular becomes apparent.
(10) The center of resistance was located at 0.24 times the root length measured apical to the level of alveolar crest.
(11) By means of immunoreactivity for spot 35 protein, a novel cerebellar Purkinje cell-specific protein, the regional heterogeneity among non-pigmented ciliary epithelial cells of rats was demonstrated with reference to the antero-posterior and crest-valley directions of individual ciliary epithelial folds in immature and mature eyes.
(12) This is done by scoring the septal cartilage in its basal attachment to the maxillary crest, providing a "swinging door" which can be sutured finally as desired.
(13) The type II, III, IV, and V boutons appear mature at all ages examined but crest synapses formed by the type III terminals are observed in the later stages of the study.
(14) The use of the pectoralis major muscle only flap in conjunction with a free iliac crest bone graft for reconstruction of the mandible is described.
(15) The outer coat turned to be extremely sculptured, presenting as interlaced crests of various height.
(16) The effects of AAGTP are different in nervous tissue from other tissues, and experiments with that nucleotide have led to the discovery of a new, 32 kDa GTP-binding protein which appears only in neural crest cells.
(17) The neural crest has been suggested as the origin of the ectomesenchymomas.
(18) He had huge eyes, a wide, deep brow, an angel's mouth, with the upper lip crested.
(19) We have examined the distribution and function of the defined cell adhesion molecules, N-cadherin and N-CAM, in the emigration of cranial neural crest cells from the neural tube in vivo.
(20) On E7, a slender neuropil was present in the migrating cell clusters, but all the crest derived cells were uniform.
Goura
Definition:
(n.) One of several species of large, crested ground pigeons of the genus Goura, inhabiting New Guinea and adjacent islands. The Queen Victoria pigeon (Goura Victoria) and the crowned pigeon (G. coronata) are among the beat known species.
Example Sentences:
(1) The authors report an epizootic form of toxoplasmosis observed among the crowned pigeons (Goura cristata Pallas and Goura victoria Frazer).
(2) These include Althouma, Mahdiya, Moqataa, Lofayta and Goura, among others.
(3) Response latencies to electrical stimulation of the optic chiasm were determined for 130 cells; no X-like cell showed a latency shorter than 1-7 ms, no Y-like cell showed a latency longer than 1-6 ms. Primate lateral geniculate nucleus cells with X-like properties thus receive their excitatory input from retinal cells with slowly conducting axons and these most probably include the tonic ganglion cells described by Gouras (1968, 1969); Y-like lateral geniculate nucleus cells are driven by retinal cells with faster conducting axons, most probably including the phasic ganglion cells described by Gouras.
(4) A method to selectively stimulate the rod- and cone-system, developed by Gouras and co-workers, has proved to allow further differentiation of heredodegenerative diseases of the retina.
(5) An unusual form of retinal degeneration is reported in 15-year-old girl and 11-year-old girl with different pedigrees, which resembles the cases reported by Gouras and associates (1983).
(6) The experiments were repeated at several eccentricities and the results show that, for a test target and background field of the same colour and under conditions which isolate the green or red spectral response mechanism, the minimum target displacement required for motion detection appears to increase in a manner similar to the centre-width receptive-field size of broad-band, centre--surround transient neurons in the rhesus monkey retina [De Monasterio and Gouras (1975) J.
(7) The agreement between the behaviourally determined perceptive field centre sizes and the receptive field centre sizes of broadband cells (measured by DeMonasterio and Gouras 1975) is excellent.
(8) In contrast, signals from the short-wavelength-sensitive (SWS) cones and dark-adapted rod photoreceptors are thought to be carried almost exclusively by ON bipolar cells (Gouras & Evers, 1985).