internodal segment

internodal segment
the segment of a nerve fiber between two nodes of Ranvier; called also internode, internode of Ranvier, and interannular s.

Medical dictionary. 2011.

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  • 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

  • internodal — Between two nodes; relating to an internode. * * * in·ter·no·dal .int ər nōd əl adj lying or extending between two nodes <a Schwann cell covers one internodal segment between two nodes of Ranvier> in·ter·node int ər .nōd n * * *… …   Medical dictionary

  • 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

  • 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

  • interannular segment — internodal s …   Medical dictionary

  • Ranvier segment — internodal s …   Medical dictionary

  • internode of Ranvier — internodal segment …   Medical dictionary

  • Myelin sheath gap — Drawing of a peripheral nerve axon (labeled axis cylinder ), showing a node of Ranvier along with other features …   Wikipedia

  • 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

  • segmentum — SYN: segment (1). [L. segment] s. A1 arteriae cerebri anterioris precommunicating part of anterior cerebral artery. s. A2 arteriae cerebri anterioris postcommunicating part of anterior cerebral artery. s. anterius [TA] SYN: anterior segment. s.… …   Medical dictionary

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