(n.) A mass or knot of nervous matter, including nerve cells, usually forming an enlargement in the course of a nerve.
(n.) A node, or gland in the lymphatic system; as, a lymphatic ganglion.
(n.) A globular, hard, indolent tumor, situated somewhere on a tendon, and commonly formed by the effusion of a viscid fluid into it; -- called also weeping sinew.
Example Sentences:
(1) Following central retinal artery ligation, infarction of the retinal ganglion cells was reflected by a 97 per cent reduction in the radioactively labeled protein within the optic nerve.
(2) The Ca2+ channel current recorded under identical conditions in rat dorsal root ganglion neurones was less sensitive to blockade by PCP (IC50, 90 microM).
(3) A microdissection of the orbital nerves of the cat was made paying particular attention to the accessory ciliary ganglion.
(4) The diffuse reaction product seen in basement membranes of ganglion and nerve may also be artifact.
(5) No age differences were observed in DBH activity of any tissues examined or in the activities of any enzymes in the coeliac-mesenteric ganglion complex.
(6) The aim was to clarify the nature of their constituent cells, specifically the giant ganglion-like cells and spindle cells, and to discuss the implications for histogenesis.
(7) The death of retinal ganglion cells during development thus seems to serve 2 purposes: It provides for the quantitative matching of the ganglion cell population to the needs of its central projection fields, and, at the same time, it serves to selectively eliminate those cells whose axons project to inappropriate targets or to inappropriate regions within the correct target fields.
(8) Gangliogliomas are rare benign tumors of the central nervous system containing neoplastic ganglion and low grade glial cells.
(9) This suggests that many retinal ganglion cells continue to discharge in total darkness for long periods.
(10) The distribution and ultrastructure of lipopigments in the rat sympathetic, vagus and spinal ganglion neurons were studied in vivo and in vitro using fluorescence and electron microscopy.
(11) There is close correspondence between the two animals in terms of each of the identified cells or neuronal clusters in the ganglion, including the presence of the cell L10 (interneuron I) in A. brasiliana which makes synaptic connections comparable with those in A. californica.
(12) Four cases of a ganglion of the hip joint are reported.
(13) We postulate that an abnormality in retinal dopaminergic neurons, which are known to reduce light responsiveness of horizontal and ganglion cells, is the underlying pathophysiology of this clinical finding.
(14) Dorsal root ganglion (DRG) neurons cultured from neonatal rats contained high concentrations of protein kinase C (PKC).
(15) Hexamethonium, a ganglion blocker, and propranolol, a beta-adrenergic blocker, markedly inhibited the hyperglycemic response to stimulation of the lateral part of the PBD (LPBD).
(16) The results of the present experiments are consistent with the view that cyclic AMP may have a mediating role in the process of ganglionic transmission.
(17) PCP plus, 3,4-Diaminopyridine (3,4-DAP) decreased synaptic transmission block from post-ganglionic compound action potential (CAP) responses to supramaximal preganglionic stimulation.
(18) We suggest that the OH improved mainly because of the increase in MSA due to L-threo-DOPS, and that the drug may activate sympathetic outflow at a site proximal to the sympathetic ganglion.
(19) These are (i) the degree of separation of the velocity ranges of the axons of X-and W-type ganglion cells; (ii) the question whether the velocities of X-and Y-cell axons (i.e.
(20) Laminin, a major component of basement membranes, is known to be present in the internal limiting membrane, and might be involved in the growth of ganglion cell axons.
Plexus
Definition:
(pl. ) of Plexus
(n.) A network of vessels, nerves, or fibers.
(n.) The system of equations required for the complete expression of the relations which exist between a set of quantities.
Example Sentences:
(1) The inhibition was not seen in longitudinal muscle without myenteric plexus.
(2) Both histochemical methods revealed the presence of intra-insular fiber plexuses.
(3) It was also demonstrated that the plexus of the median eminence is, at its periphery, in direct communication with the systemic venous twigs.
(4) For Rana catesbeiana Vf was 1.43 microliter min-1 or 0.2 microliter min-1 mg choroid plexus-1 and for Rana pipiens Vf was 0.2 microliter min-1 or 0.1 microliter min-1 mg choroid plexus-1.
(5) In cancer of the pancreas head, cancer cells could invade the portal vein and perineural space of the celiac plexus, and metastasize to regional lymph nodes around the celiac axis.
(6) Because this transport system in the choroid plexus is normally responsible for the excretion of the serotonin metabolite from the brain to the plasma, accumulation of endogenously produced organic acids in the brain, secondary to reduced clearance by the choroid plexus, could be a contributing factor in the development of encephalopathy in children with medium-chain acyl-CoA dehydrogenase deficiency who have elevated levels of octanoic acid systematically.
(7) There was also a significant (P less than 0.001) improvement in clinician-assessed subjective and objective signs (bleeding, inflammation and dilatation of the haemorrhoidal plexus) after 2 and 4 weeks' treatment compared with placebo.
(8) For sequelae in the brain, nervous plexuses, heart, eye, surgical treatment can be useful, even if frequently with palliative results.
(9) The influence of high conduction blocks of the brachial plexus on the peripheral circulation in the upper extremities has been studied.
(10) Varicose fibres were found in the myenteric plexuses of the duodenum, jejunum, ileum and colon.
(11) The patients with spasm on top of a fixed organic lesion underwent a successful aorto-coronary bypass graft together with resection of the pre- and sub-aortic nerve plexus.
(12) Increased or diminished reactivity of the celiac plexus is registered in patients with duodenal ulcers, depending on the presence of complications.
(13) IGF-1 transcripts were not detected in ependymal lining or choroid plexus of the lateral ventricle.
(14) Injury to the brachial plexus was prospectively assessed in 335 patients undergoing median sternotomy for cardiac operation.
(15) Stimulation of the ipsilateral plexus had no effect on glutamate and glutamine release.
(16) The number of 125I-ANP binding sites in the choroid plexus of rats with kaolin-induced hydrocephalus was significantly higher as compared to findings in the control rats, whereas no differences in the binding affinity were observed 3 days and 3 weeks after the intracisternal injection of kaolin.
(17) During a 4-year period, 83 pregnant women with fetal choroid plexus cysts were investigated in our unit.
(18) The take of the transplanted free skin flap on the hand was proved to be influenced by the degree of immobilization of the hand operated on and the transplanted graft, the efficiency of permanent anesthesia of the humeral plexus of the operated arm and by tissue therapy with the amnion suspension.
(19) In the observation of the serial sections, capillary plexuses were able to be confirmed along the periphery, very close to the auricular cartilage.
(20) In high thoracic level lesion paraplegics monitoring heart rate was considered to be unreliable because of suspicion of injury to the sympathetic contribution to the cardiac plexus.