| CNP | community nurse practitioner; continuous negative pressure; cranial nerve palsy; 2',3'-cyclic nucleo... |
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| CSNS | carotid sinus nerve stimulation |
| DCN | data collection network; deep cerebral nucleus; delayed conditioned necrosis; depressed, cognitively... |
| DNR | daunorubicin; do not resuscitate; dorsal nerve root |
| DNS | deviated nasal septum; diaphragmatic nerve stimulation; did not show [for appointment]; Doctor of Nu... |
| James fibres | Atrio-His bundle connections thought to be the basis for the short P-R interval syndrome; these fibre's should be distinguished from the internodal tracts of the atrium, sometimes referred to as "James tracts." Synonym: James tracts. (05 Mar 2000) |
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| exogenous fibres | Nerve fibre's by which a given region of the central nervous system is connected with other regions; the term applies to both afferent and efferent fibre connections. (05 Mar 2000) |
| external arcuate fibres | They include: 1) dorsal external arcuate fibres that arise from cells in the accessory or lateral cuneate nucleus and pass to the cerebellum; 2) ventral external arcuate fibres that arise from the arcuate nuclei at the base of the medulla oblongata and pass around the lateral surface of the medulla; both enter the cerebellum as components of the restiform portion of the inferior cerebellar peduncle. Synonym: fibrae arcuatae externae. (05 Mar 2000) |
| yellow fibres | Fibre's that are 0.2 to 2 um in diameter but may be larger in some ligaments; they branch and anastomose to form networks and fuse to form fenestrated membranes; the fibre's and membranes consist of microfibrils about 10 nm wide and an amorphous substance containing elastin. Synonym: yellow fibres. (05 Mar 2000) |
| fastigiobulbar fibres | Nerve fibres projecting from the fastigial nuclei of the cerebellum to the brain stem; crossed and uncrossed fibres that terminate mainly in the vestibular and reticular nuclei, and in the medial accessory olivary nucleus. (05 Mar 2000) |
| fastigiospinal fibres | Crossed descending fibres originating in the fastigial nucleus of the cerebellum and ending in the spinal cord gray matter at cervical, and possibly lower, levels. (05 Mar 2000) |
| kinetochore fibres | Fibres of the mitotic spindle attached to the centromere and extending toward the poles. Compare: astral fibres, polar fibres. (05 Mar 2000) |
| 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) |
| 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) |
| abducens nerve | <anatomy, nerve> The 6th cranial nerve. The abducens nerve originates in the abducens nucleus of the pons and sends motor fibres to the lateral rectus muscles of the eye. Damage to the nerve or its nucleus disrupts horizontal eye movement control. (12 Dec 1998) |
| abducent nerve | <anatomy> The abducent nerve enervates a muscle which moves the eyeball. Lesions of the sixth cranial nerve result in deviation of the eyeball outward and double vision. Synonym: cranial nerve VI. (27 Sep 1997) |
| accessory nerve | <anatomy, nerve> The accessory nerve enervates the sternocleidomastoid muscles and the trapezius muscles. Lesions of the eleventh result in drooping of the shoulder and inability to rotate the head away from the affected side. Synonym: cranial nerve XI. (27 Sep 1997) |