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单词 nerve ending
释义

nerve ending


Thesaurus
Noun1.nerve ending - the terminal structure of an axon that does not end at a synapsenerve ending - the terminal structure of an axon that does not end at a synapsenerve endaxon, axone - long nerve fiber that conducts away from the cell body of the neuronfree nerve ending - microscopic sensory nerve endings in the skin that are not connected to any specific sensory receptorPacinian corpuscle - a specialized bulblike nerve ending located in the subcutaneous tissue of the skin; occurs abundantly in the skin of palms and soles and joints and genitalsproprioceptor - special nerve endings in the muscles and tendons and other organs that respond to stimuli regarding the position and movement of the bodyend, terminal - either extremity of something that has length; "the end of the pier"; "she knotted the end of the thread"; "they rode to the end of the line"; "the terminals of the anterior arches of the fornix"

Nerve Ending


nerve ending

[′nərv ‚end·iŋ] (neuroscience) The structure on the distal end of an axon. The termination of a nerve.

Nerve Ending

 

a specialized structure in the terminal portion of the long outgrowth, or axon, of a nerve cell. At the site of the nerve ending, the axon does not have a myelin sheath.

Sensory nerve endings receive information, while effector nerve endings transmit information. A nerve impulse travels along the axon away from the sensory nerve ending, where it originates. In contrast, a nerve impulse travels toward an effector ending. A sensory nerve ending is structurally and functionally similar to a dendrite, and like a dendrite it has a receptor membrane. Sensory nerve endings can be independent or connected to special sensory cells.

An effector nerve ending, usually appearing as a local widening at the very end or in the middle of an axon, contains mitochondria and masses of secretory vesicles or granules that secrete mediators into the extracellular space. The terminal brush of an axon in the midbrain of a rat has an overall length of more than 0.5 m and contains about half a million nerve endings. The effector nerve endings of many autonomic neurons in the sympathetic ganglia are contained in the terminal brushes; these brushes intertwine to form complex terminal plexuses. Autonomic nerve endings are structurally similar to effector nerve endings.

nerve ending


nerve end·'ing

any one of the specialized terminations of peripheral sensory or motor nerve fibers. See: motor endplate, corpuscle, bulb.

nerve ending

The termination of a nerve fiber (axon or dendrite) in a peripheral structure. It may be sensory (receptor) or motor (effector). Sensory endings can be nonencapsulated (e.g., free nerve endings, peritrichal endings, or tactile corpuscles of Merkel) or they can be encapsulated (e.g., end-bulbs of Krause, Meissner's corpuscles, Vater-Pacini corpuscles, or neuromuscular and neurotendinous spindles).

nerve ending

the tip of a nerve fibre in the form of either an END ORGAN or a small branching structure.

nerve end·ing

(nĕrv ending) A specialized termination of peripheral sensory nerve fibers.

nerve ending


Related to nerve ending: nerve ending pain
  • noun

Synonyms for nerve ending

noun the terminal structure of an axon that does not end at a synapse

Synonyms

  • nerve end

Related Words

  • axon
  • axone
  • free nerve ending
  • Pacinian corpuscle
  • proprioceptor
  • end
  • terminal
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更新时间:2025/3/4 1:33:12