internode of Ranvier
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Ranvier crosses nodes segment (internode) tactile disks — Ran·vier crosses, nodes, segment (internode), tactile disks (rahn vyaґ) [Louis Antoine Ranvier, French pathologist, 1835–1922] see under cross, disk, and node, and see internodal segment under segment … Medical dictionary
internode — SYN: internodal segment. * * * n. the length of axon covered with a myelin sheath. Internodes are separated by nodes of Ranvier, where the sheath is absent. * * * in·ter·node (inґtər nōd) [inter + node] internodal segment … Medical dictionary
internode — [ ɪntənəʊd] noun 1》 Botany a part of a plant stem between nodes. 2》 Anatomy a stretch of a nerve, sheathed with myelin, between two nodes of Ranvier … English new terms dictionary
internode — n. the length of axon covered with a myelin sheath. Internodes are separated by nodes of Ranvier, where the sheath is absent … The new mediacal dictionary
Nodes of Ranvier — are known as the gaps (about 1 micrometer in diameter) formed between myelin sheath cells along axons or nerve fibers. OverviewSeveral vertebrate axons are surrounded by a myelin sheath allowing rapid and efficient saltatory propagation of action … Wikipedia
internodal segment — the segment of a nerve fiber between two nodes of Ranvier; called also internode, internode of Ranvier, and interannular s … Medical dictionary
Myelin sheath gap — Drawing of a peripheral nerve axon (labeled axis cylinder ), showing a node of Ranvier along with other features … Wikipedia
segment — 1. A section; a part of an organ or other structure delimited naturally, artificially, or by invagination from the remainder. SYN: segmentum [TA]. SEE ALSO: metamere. 2. A territory of an organ having independent function, supply, or drainage. 3 … Medical dictionary
NERVEUX (SYSTÈME) - Neurogenèse — L’évolution phylogénétique du système nerveux des métazoaires, évolution si remarquable par la croissante complexité d’organisation et de fonctionnement qui la caractérise, offre au naturaliste un champ d’étude à l’intérêt fascinant. Cependant,… … Encyclopédie Universelle
Internodal segment — Infobox Anatomy Name = PAGENAME Latin = segmentum internodale GraySubject = 183 GrayPage = 727 Caption = Diagram of longitudinal sections of medullated nerve fibers. Caption2 = Medullated nerve fibers stained with silver nitrate. System =… … Wikipedia
