(1) The course of cytological abnormalities and synaptogenesis of Purkinje cells were investigated in the culmen of cerebella from homozygous Gunn rats with hereditary hyperbilirubinemia from postnatal day 7 to adulthood (5-10 months old).
(2) Since the Purkinje (P) cells of the cerebellar vermis (culmen) respond to roll tilt of the animal with a discharge pattern that is out of phase with respect to that of the related lateral vestibular neurons, thus exerting a facilitatory influence on the gain of the vestibulospinal (VS) reflex, we tested the effects of local microinjection into the anterior vermis of noradrenergic and cholinergic agents on these reflexes.
(3) Therefore, the anterior portions of hemispheres were situated anterior to the culmen in every 200 R group.
(4) Among these structures, the length of the culmen seemed to be the least affected by radiation stress in all of the breeds studied.
(5) The majority of the evoked units were located in the posterior part of the culmen, lateral to the paravermian vein.
(6) Reversible cooling (5-0 degrees C) or partial ablation of the culmen of the cerebellar vermis could facilitate SIS-induced stepping, whereas electrical stimulation (300 microA up) of the same region could attenuate or abolish stepping.
(7) The angiography showed a basilar trunk occlusion with revascularization of the cerebellar culmen.
(8) These images also can display (1) the corpus medullare and primary white-matter branches to the vermian lobules, including the lingula, centralis, culmen, declive, folium, tuber, pyramis, uvula, and nodulus; and (2) several finer secondary branches to individual folia within the lobules.
(9) Computerized tomography (CT) is a safer method which permits a more precise and earlier visualization of temporal and central herniations and herniation of the culmen cerebelli, which are the three varieties of transtentorial herniation.
(10) Cooling of the lateral part of the culmen of the cerebellar vermis and hemisphere mainly facilitated stepping of the ipsilateral forelimb.
(11) The cerebella of the F1 generation were examined for the presence (Type I) or absence (Type II) of an intraculminate fissure between vermian lobule IV and vermian lobule V (the ventral and dorsal lobules of the culmen).
(12) Four growth measurements (body mass, culmen, tarsus, wing) were recorded from nestlings to determine if these organophosphorus compounds caused perturbations in development at sublethal concentrations.
(13) The superior part of the cerebellum supplied by this artery includes the following lobules: lobulus anterior, lobulus simplex, lobulus semilunaris superior, and, in the vermis, lobulus centralis, culmen and clivus.
(14) The five regions of interest included the following: (1) lingula and centralis, (2) culmen, (3) declive, folium, and tuber, (4) pyramis, and (5) uvula and nodulus.
(15) The lingula, central lobule, culmen, superior portion of declive, anterior lobules and anteromedial half of simple lobule were severely degenerated, while other lobules were spared excluding moderate degeneration in inferomedian portion of the hemisphere.
(16) Results for 177 mice revealed that many brains had extra sulci present within the central lobe, the culmen, the declive and the uvula, and that patterns within a genetically uniform inbred strain were highly variable.
(17) Growth rates for body weight, culmens, wings, and tarsi of both species on control diets exceeded those on many treatment diets but the differences were less apparent for mallards than for black ducks.
(18) Growth rates of body weights were proportionately more depressed by radiation stress than were body sizes, as measured by the lengths of the culmen, tarsus, middle toe and longest primary wing feather of all 32 day-old survivors.
(19) We report about our experience with the infratentorial supracerebellar approach in 23 patients operated on for lesions located in the posterior part of the third ventricle, quadrigeminal plate, culmen cerebelli and cerebellar peduncle.
(20) In nearly midsagittal sections of the culmen, the percentage of the affected Purkinje cells was 0.9%, 17.1%, 0% and 0% at days 3, 7, 13 and 20, respectively.
Ridge
Definition:
(n.) The back, or top of the back; a crest.
(n.) A range of hills or mountains, or the upper part of such a range; any extended elevation between valleys.
(n.) A raised line or strip, as of ground thrown up by a plow or left between furrows or ditches, or as on the surface of metal, cloth, or bone, etc.
(n.) The intersection of two surface forming a salient angle, especially the angle at the top between the opposite slopes or sides of a roof or a vault.
(n.) The highest portion of the glacis proceeding from the salient angle of the covered way.
(v. t.) To form a ridge of; to furnish with a ridge or ridges; to make into a ridge or ridges.
(v. t.) To form into ridges with the plow, as land.
(v. t.) To wrinkle.
Example Sentences:
(1) The invaginations were classified into four easily recognized types: regular, chunky, filigree, and ridge (present only in axon hillock regions).
(2) On the tangential views the inclinations of the future implants were estimated and the part of the alveolar ridge having a width less than 5 mm, which is the minimum width for housing an implant, was compiled.
(3) After 1 day in vitro the explants were partly encircled by epithelium which had proliferated from the cut edges of the explant and from rete ridges near the cut edge (epiboly).
(4) We have now found that these cells, cultured as a monolayer, are able to undergo rapid morphogenesis forming ridges and balls around collagen fibres, when soluble collagen type I is added to the medium.
(5) Besides the rough, wrinkled, and brown or black surface of the fingertips, microwrinkles of the epidermis occur on the skin ridges, which have so far not been described.
(6) The results of the rapid-freeze and deep-etch procedure showed that the ridges observed by the surface replica method consisted of linear arrangements of elliptical particles on the ES face of the plasma membrane.
(7) The narrow intercellular ridge is smooth, whereas the epithelial cells have small cytoplasmic knobs between the cilia.
(8) The calculations revealed that local hypoxia and lipoprotein accumulation may occur at the ridges, leading to subsequent intimal thickening and ridge growth.
(9) The quality of the alveolar ridge and the denture as well as the functional status of the craniomandibular system were evaluated in detail.
(10) The use of an intraoral alveolar ridge soft tissue expander to aid in reconstruction of the alveolar ridge is described, and the results in five cases are reported.
(11) Sixty-three per cent of the implants were operated in immediately after tooth extraction, whereas the rest were installed in a healed bony alveolar ridge.
(12) After the treatment in toto of the embryos from various species of Anura by cAMP, the number of primordial germ cells (PGC) in genital ridges is strongly reduced; the most part of the PGC are found in the endoderm.
(13) The innervation to the rete ridge is uniquely absent in the rabbit.
(14) The atrial complex was a common chamber with an attempt at division into two parts by a circular ridge of tissue; the ventricular complex was formed by three chambers which were all communicating between each other in the superior margin of their muscular interventricular septum.
(15) The other main sites of expression are the genital ridge, fetal gonad and mesothelium.
(16) Cells with demarcated borders showed rearrangement of microvilli into globular chains or ridges which lined up with the branching membrane.
(17) With the mobilization of the two halves of the face it is possible to approximate the orbits, simultaneously elongating the center of the face and normalizing the maxillary alveolar ridge.
(18) The air pressure in the skin cup was continually adjusted (using an electromechanical servo-control system) to pull the skin upward and to hold it perfectly flat across the upper ridge of the Teflon cylinder.
(19) Clinical findings as well as fingerprint ridge counts were typical of the syndrome.
(20) By design these plants are adjacent to the AEC's Oak Ridge National Laboratory, and such a location would seem ideal for an experiment on the wedding of nuclear and fossil sources of energy.