ganglion cell

ganglion cell
nerve erve (n[~e]rv), n. [OE. nerfe, F. nerf, L. nervus, akin to Gr. ney^ron sinew, nerve; cf. neyra` string, bowstring; perh. akin to E. needle. Cf. {Neuralgia}.] 1. (Anat.) 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. [1913 Webster]

Note: An ordinary nerve is made up of several bundles of nerve fibers, each bundle inclosed in a special sheath (the perineurium) and all bound together in a connective tissue sheath and framework (the epineurium) containing blood vessels and lymphatics. [1913 Webster]

2. A sinew or a tendon. --Pope. [1913 Webster]

3. Physical force or steadiness; muscular power and control; constitutional vigor. [1913 Webster]

he led me on to mightiest deeds, Above the nerve of mortal arm. --Milton. [1913 Webster]

4. Steadiness and firmness of mind; self-command in personal danger, or under suffering; unshaken courage and endurance; coolness; pluck; resolution. [1913 Webster]

5. Audacity; assurance. [Slang] [1913 Webster]

6. (Bot.) 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. [1913 Webster]

7. (Zo["o]l.) One of the nervures, or veins, in the wings of insects. [1913 Webster]

{Nerve cell} (Anat.), a neuron, one of the nucleated cells with which nerve fibers are connected; a {ganglion cell} is one type of nerve cell.

{Nerve fiber} (Anat.), one of the fibers of which nerves are made up. These fibers are either {medullated} or {nonmedullated}. In both kinds the essential part is the translucent threadlike axis cylinder which is continuous the whole length of the fiber.

{Nerve stretching} (Med.), the operation of stretching a nerve in order to remedy diseases such as tetanus, which are supposed to be influenced by the condition of the nerve or its connections. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Ganglion cell — Ganglion Gan gli*on, n.; pl. L. {Ganglia}, E. {Ganglions}. [L. ganglion a sort of swelling or excrescence, a tumor under the skin, Gr. ?: cf. F. ganglion.] 1. (Anat.) (a) A mass or knot of nervous matter, including nerve cells, usually forming an …   The Collaborative International Dictionary of English

  • ganglion cell — n a nerve cell having its body outside the central nervous system * * * 1. a form of large nerve cell characteristic of ganglia; called also gangliocyte. 2. any of those retinal cells that are the third (last) neurons in the vertical linkage of… …   Medical dictionary

  • Ganglion cell — Infobox neuron neuron name = Ganglion cell image neuron = Gray624.png caption neuron = Various forms of nerve cells. A. Pyramidal cell. B. Small multipolar cell, in which the dendrites quickly divides into numerous branches. C. Small fusiform… …   Wikipedia

  • Ganglion cell layer — Infobox Anatomy Name = PAGENAME Latin = GraySubject = 225 GrayPage = 1016 Caption = Section of retina. (Ganglionic layer labeled at right, third from the top.) Caption2 = Plan of retinal neurons. (Ganglionic layer labeled at left, third from the… …   Wikipedia

  • ganglion cell — noun a nerve cell whose body is outside the central nervous system damage to ganglion cells in the retina may play a role in the development of glaucoma • Syn: ↑gangliocyte • Hypernyms: ↑nerve cell, ↑neuron * * * noun …   Useful english dictionary

  • ganglion cell layer of retina — a layer of the stratum nervosum retinae, situated between the inner plexiform layer and the nerve fiber layer, consisting essentially of the ganglion cells of the retina, and containing also the MÑŒller fibers, neuroglia, and branches of the… …   Medical dictionary

  • ganglion cell — A type of interneuron that conveys information from the retinal bipolar, horizontal and amacrine cells to the brain …   Dictionary of molecular biology

  • Photosensitive ganglion cell — Section of retina: light strikes first the ganglion cell layer, last the rods and cones Photosensitive ganglion cells, also called photosensitive Retinal Ganglion Cells (pRGC), intrinsically photosensitive Retinal Ganglion Cells (ipRGC) or… …   Wikipedia

  • retinal ganglion cell — See ganglion cell …   Dictionary of molecular biology

  • Ganglion — Gan gli*on, n.; pl. L. {Ganglia}, E. {Ganglions}. [L. ganglion a sort of swelling or excrescence, a tumor under the skin, Gr. ?: cf. F. ganglion.] 1. (Anat.) (a) A mass or knot of nervous matter, including nerve cells, usually forming an… …   The Collaborative International Dictionary of English

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