(n.) The whole axial portion of an animal, including the head, neck, trunk, and tail.
Example Sentences:
(1) An initial complex-soma inflection was observed on the rising phase of the action potential of some cells.
(2) Axons emerge from proximal dendrites within 50 microns of the soma, and more rarely from the soma, in a tapering initial segment, commonly interrupted by one or two large swellings.
(3) In cat, DARPP-32-immunoreactive cell bodies identified as Müller cells were demonstrated in the inner nuclear layer (INL) with processes closely surrounding the cell soma of photoreceptors in the outer nuclear layer.
(4) Today the physician who treats women with emotional problems during menopause cannot function solely as a psychotherapist; he must deal with both their soma and psyche.
(5) For those synapses that were close to the soma the time constant for decay for the non-NMDA component, which was voltage insensitive, ranged from 4-8 ms. 7.
(6) We find that the labelled cell has a myelinated axon, but that the axon loses its myelin within 50 microns of the soma and has not yet been traced further.
(7) The soma of the injured neutron has a dense perinuclear ring of RNA.
(8) The effective electrical geometry under the conditions of control and 0.5 mM PNB sufficient to completely abolish the postsynaptic potential were determined from analyses of the membrane charging curves assuming the lumped-soma-short-cable model.
(9) Sequential recordings of spike amplitudes from the axon hillock, soma, and lateral dendrite suggest that the generator of the axotomy-induced component is localized to the normally passive soma and proximal dendrite.
(10) In order to determine whether there is a relationship between soma diameter and oxidative enzyme activity of alpha-motoneurons, we investigated the alpha-motoneurons innervating the different portions within a rat gluteus medius muscle.
(11) In oestrogen-treated preparations, tuberoinfundibular arcuate neurons responsive and unresponsive to accessory bulb stimulation could be distinguished by the frequency of successful antidromic propagation into the soma.
(12) These cells were also NSE positive and were characterized by the presence of soma action potentials.
(13) It is concluded that barium ions have at least 2 points of attack in the ganglion: 1, on the soma membrane of the neurones, and 2, on the presynaptic terminals controlling them.
(14) By the end of this period the neuronal soma and the proximal dendrites appeared mature in terms of both morphology and synaptic input.
(15) Although the globular bushy cell axons were not completely filled from the soma of origin to terminal fields in the contralateral brainstem, a number of consistent anatomical features were distinguished in the population.
(16) Approximately 85% of Na channels in the soma are essentially indistinguishable from those in the giant axon with regard to gating properties and sensitivity to tetrodotoxin or saxitoxin.
(17) In slices cut parallel to the pyramidal neurons (perpendicular to the brain surface) one can study chemosensitivity of the various parts of the dendritic tree and the soma.
(18) It has not been possible to connect the efferent somas with the fibers.
(19) Interestingly, the M-cell soma which stains positive for AChE was ChAT negative.
(20) However, the distribution of the enzymes is indirectly correlated as high levels of particulate cyclic AMP-dependent protein kinase are present in the soma of neurons with high concentrations of adenylate cyclase in their terminals.
Somite
Definition:
(n.) One of the actual or ideal serial segments of which an animal, esp. an articulate or vertebrate, is is composed; somatome; metamere.
Example Sentences:
(1) 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.
(2) The PGCs were picked up with a fine glass pipette, and one hundred were then injected into the terminal sinuses of 2-day-old Japanese quail embryos (24 somites); bubbles were then inserted to prevent haemorrhage.
(3) The aim of this study is to test the ability of the intrinsic wing musculature to develop in the absence of somitic mesoderm.
(4) At the 10-somite stage, the rhythmical contraction is established and striated myofibrils become distinctly discernible.
(5) Our motility analyses of the chimaeras confirmed that transplanted thoracic somitic mesoderm gives rise to brachial musculature and that the experimental muscles maintained the inherent dystrophic phenotype.
(6) Metabolism studies demonstrated that the early somite embryo possesses a limited capacity to oxidatively metabolize B-OHB.
(7) Metabolic events in somites related to hyaluronic acid are not influenced by the notochord.
(8) In implants of either multiple rostral or caudal somite-halves, the grafted mesoderm dissociates normally into sclerotome and dermomyotome.
(9) Further spreading of the labelled cells to several somites in some cases was probably the result of a more extensive mixing of mesodermal cells among the somitomeres prior to somite segmentation.
(10) However, the hybrid populations tended to have significantly fewer somites and to be significantly larger than the parental populations at comparable stages of facial development.
(11) In the rat embryonic heart, the onset of spontaneous electrical activity and contraction occurs at the three-somite stage.
(12) Thus when the implant consisted of compound cranial half-somites, giant, coalesced ganglia developed, encompassing the entire length of the graft.
(13) Two normal-looking embryos were recovered on the 9th and 10th day (4-somite and ca.
(14) High levels were found in the primitive heart, hepatic diverticulum and septum transversum; lower levels were found in the early somites and other primitive mesenchymal derivatives and midgut endoderm.
(15) This adhesion is then supplemented by the development of tight junctions proximally in the somite.
(16) Our studies span the period between early somite stages and full term.
(17) In contrast, changes in the prevalence of N-CAM did not strictly accompany the remodeling of the somitic epithelium into dermamyotome and sclerotome.
(18) Subsequently, vimentin persists in the endoderm and mesoderm and the tissues derived therefrom, such as the somites and developing heart, throughout the period of study.
(19) myf-5 is the only myogenic factor sequence present in the somite prior to muscle formation and thus is potentially involved in an earlier step of muscle determination.
(20) Adjacent to the caudal half of each somite, these cells penetrated no further than the myosclerotomal border, but opposite the rostral somite half, they were found next to the sclerotome almost as far ventrally as the notochord.