| MID | maximum inhibiting dilution; mesioincisodistal; midinfarct dementia; minimum infective dose; minimum... |
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| MIF | macrophage inhibitory factor; melanocyte[-stimulating hormone]-inhibiting factor; maximum inspirator... |
| MMIF | macrophage migration inhibitory factor |
| NAIR | nonadrenergic inhibitory response |
| SIA | serum inhibitory activity; stress-induced analgesia; stress-induced anesthesia; subacute infectious ... |
| spinoreticular fibres | Nerve fibres originating from the spinal cord and terminating in the reticular formation of the brainstem. Synonym: spinoreticular tract. (05 Mar 2000) |
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| Nelaton's fibres | See: transverse rectal folds. Synonym: Nelaton's fibres. (05 Mar 2000) |
| nerve fibres | Slender processes of neurons, especially the prolonged axons that conduct nerve impulses. (12 Dec 1998) |
| nerve fibres, myelinated | Grayish white nerve fibres whose axons are encased in a myelin sheath which may in turn be enclosed by a neurilemma (a thin membrane spirally enwrapping the myelin layers). (12 Dec 1998) |
| striatonigral fibres | Nerve fibres originating from cells of the caudate and putamen and terminating mainly in the pars reticulata of the substantia nigra; they utilise GABA and substance P. Synonym: striatonigral fibres. (05 Mar 2000) |
| strionigral fibres | Nerve fibres originating from cells of the caudate and putamen and terminating mainly in the pars reticulata of the substantia nigra; they utilise GABA and substance P. Synonym: striatonigral fibres. (05 Mar 2000) |
| nodoventricular fibres | Paraspecific fibre's originating from the A-V node, the His bundle, or the bundle branches and inserting into the ventricular myocardium; they are potential pathways for reentrant dysrhythmias. Synonym: nodoventricular fibres. (05 Mar 2000) |
| nonmedullated 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) |
| sudomotor fibres | Postganglionic and cholinergic sympathetic nerve fibre's that innervate the sweat glands. (05 Mar 2000) |
| nucleocortical fibres | General term for projections from a nucleus to an overlying cortical structure; specifically used to designate axons of cerebellar nuclear cells that project to the cerebellar cortex (cerebellar nucleocortical fibres) where they end as mossy fibres. (05 Mar 2000) |
| sustentacular fibres of retina | Sustentacular neuroglial cells of the retina running through the thickness of the retina from the internal limiting membrane to the bases of the rods and cones where they form a row of junctional complexes. Synonym: Muller's radial cells, sustentacular fibres of retina. (05 Mar 2000) |
| dental fibres | <dentistry> The processes of the pulpal cells, the odontoblasts, which extend in radial fashion through the dentin to the dentoenamel junction and are contained within the dentinal tubules. The intertubular fine collagenous fibre's that with the dentinal ground substance infiltrated with calcium salts constitutes the dentinal matrix. Synonym: Tomes' fibres. (05 Mar 2000) |
| sympathetic fibres, postganglionic | Nerve fibres which project from sympathetic ganglia to synapses on target organs. Sympathetic postganglionic fibres use norepinephrine as transmitter, except for those innervating eccrine sweat glands (and possibly some blood vessels) which use acetylcholine. They may also release peptide cotransmitters. (12 Dec 1998) |
| dentatorubral fibres | Nerve fibres arising in the dentate nucleus of the cerebellum and projecting, via the superior cerebellar peduncle and its decussation, to the contralateral red nucleus of the midbrain. Synonym: fibrae dentatorubrales. (05 Mar 2000) |
| dentatothalamic fibres | Nerve fibres projecting from the dentate nucleus of the cerebellum to the contralateral thalamus via the superior cerebellar peduncle (and its decussation); enter the thalamus as one component of the thalamic fasciculus. (05 Mar 2000) |