What's the difference between nerve and plexus?

Nerve


Definition:

  • (n.) One of the whitish and elastic bundles of fibers, with the accompanying tissues, which transmit nervous impulses between nerve centers and various parts of the animal body.
  • (n.) A sinew or a tendon.
  • (n.) Physical force or steadiness; muscular power and control; constitutional vigor.
  • (n.) Steadiness and firmness of mind; self-command in personal danger, or under suffering; unshaken courage and endurance; coolness; pluck; resolution.
  • (n.) Audacity; assurance.
  • (n.) One of the principal fibrovascular bundles or ribs of a leaf, especially when these extend straight from the base or the midrib of the leaf.
  • (n.) One of the nervures, or veins, in the wings of insects.
  • (v. t.) To give strength or vigor to; to supply with force; as, fear nerved his arm.

Example Sentences:

  • (1) Such a signal must be due to a small ferromagnetic crystal formed when the nerve is subjected to pressure, such as that due to mechanical injury.
  • (2) They are going to all destinations.” Supplies are running thin and aftershocks have strained nerves in the city.
  • (3) Elements in the skin therefore seemed to enhance nerve regeneration and function.
  • (4) The possibility that the ventral nerve photoreceptor cells serve a neurosecretory function in the adult Limulus is discussed.
  • (5) 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.
  • (6) During the performance of propulsive waves of the oesophagus the implanted vagus nerve caused clonic to tetanic contractions of the sternohyoid muscle, thus proving the oesophagomotor genesis of the reinnervating nerve fibres.
  • (7) The oral nerve endings of the palate, the buccal mucosa and the periodontal ligament of the cat canine were characterized by the presence of a cellular envelope which is the final form of the Henle sheath.
  • (8) Sixteen patients were operated on for lumbar pain and pain radiating into the sciatic nerve distribution.
  • (9) The dependence of fluorescence polarization of stained nerve fibres on the angle between the fibre axis and electrical vector of exciting light (azimuth characteristics) has been considered.
  • (10) No monosynaptic connexions were found between anterodorsal and posteroventral muscles except between the muscles innervated by the peroneal and the tibial nerve.
  • (11) Histological studies of nerves 2 years following irradiation demonstrated loss of axons and myelin, with a corresponding increase in endoneurial, perineurial, and epineurial connective tissue.
  • (12) The ATP content of the cholinergic electromotor nerves of Torpedo marmorata has been measured.
  • (13) Plasma NPY correlated better with plasma norepinephrine than with epinephrine, indicating its origin from sympathetic nerve terminals.
  • (14) Based on several previous studies, which demonstrated that sorbitol accumulation in human red blood cells (RBCs) was a function of ambient glucose concentrations, either in vitro or in vivo, our investigations were conducted to determine if RBC sorbitol accumulation would correlate with sorbitol accumulation in lens and nerve tissue of diabetic rats; the effect of sorbinil in reducing sorbitol levels in lens and nerve tissue of diabetic rats would be reflected by changes in RBC sorbitol; and sorbinil would reduce RBC sorbitol in diabetic man.
  • (15) Standard nerve conduction techniques using constant measured distances were applied to evaluate the median, ulnar and radial nerves.
  • (16) An experimental autoimmune model of nerve growth factor (NGF) deprivation has been used to assess the role of NGF in the development of various cell types in the nervous system.
  • (17) Noradrenaline (NA) was released from sympathetic nerve endings in the tissue by electrical stimulation of the mesenteric nerves or by the indirect sympathomimetic agent tyramine.
  • (18) However, none of the nerve terminals making synaptic contacts with glomus cells exhibited SP-like immunoreactivity.
  • (19) The number of axons displaying peptide-like immunoreactivity within the optic nerve, retinal or cerebral to the crush, and within the optic chiasm gradually decreased after 2-3 months.
  • (20) Somatostatin-like immunoreactivity has been found to occur in nerve terminals and fibres of the normal human skin using immunohistochemistry.

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.