| unmyelinated fibres | A fibre having no myelin covering (CNS); a naked axon; in the PNS represented by all axons lying in troughs in a single Schwann cell (Schwann cell unit); a slow conducting fibre. Synonym: gray fibres, nonmedullated fibres, Remak's fibres. (05 Mar 2000) |
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| zonular fibres | Delicate fibres that pass from the equator of the lens to the ciliary body, collectively known as the ciliary zonule. Synonym: fibrae zonulares. (05 Mar 2000) |
| km fibres | <cell biology> Bundles of microtubules running longitudinally below and to one side of the bases of cilia in a kinety. (17 Dec 1997) |
| Korff's fibres | Argyrophilic fibre's that pass between odontoblasts at the periphery of the dental pulp and fan out into the dentin. (05 Mar 2000) |
| fibres of lens | <biology, ophthalmology, physiology> The elongated cells of ectodermal origin forming the substance of the crystalline lens of the eye. Synonym: fibrae lentis. (05 Mar 2000) |