| NCVS | nerve conduction velocity study |
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| NET | nasoendotracheal tube; nerve excitability test; neuroectodermal tumor; neuroendocrine tumor; norepin... |
| NFL | nerve fiber layer; neurofilament protein, light polypeptide |
| NFLD | nerve fiber layer defect |
| NNP | neonatal nurse practitioner; nerve net pulse |
| ventral primary ramus of spinal nerve | <anatomy, nerve> The larger, anterolaterally-directed major terminal branch (with the dorsal primary ramus) of all 31 pairs of mixed spinal nerves, formed at the intervertebral foramen. Most ventral primary rami, especially those involved in the innervation of the limbs, participate in the formation of the major nerve plexuses (cervical, brachial, and lumbosacral) and lose their identities. Most in the thoracic region, however, remain separate from adjacent rami to become the intercostal and subcostal nerves. Ventral primary rami provide innervation to the anterolateral body wall and trunk. Nomina Anatomica lists ventral primary rami as "rami ventrales" for each group of spinal nerves: 1) cervical (nervorum cervicalium ), 2) thoracic (nervorum thoracicorum ), 3) lumbar (nervorum lumbalium ), 4) sacral (nervorum sacralium )m, and 5) coccygeal (nervi coccygei ). Synonym: ramus ventralis nervi spinalis, anterior primary division. (05 Mar 2000) |
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| geniculum of facial nerve | <anatomy, nerve> A rectangular bend of the facial nerve in the facial canal where it turns posterior in the medial wall of the middle ear (external geniculum), complex loop of facial nerve fibres around the abducens nucleus (internal geniculum). Synonym: geniculum nervi facialis. (05 Mar 2000) |
| marginal mandibular branch of facial nerve | <anatomy, nerve> Branch of facial nerve which parallels the mandibular margin innervating risorius muscle and muscles of lower lip and chin. Synonym: ramus marginalis mandibulae nervi facialis. (05 Mar 2000) |
| genital branch of genitofemoral nerve | <anatomy, nerve> Branch of genitofemoral nerve distributed to skin of anterior scrotum (male) or labia majora (female) and adjacent thigh and supplying a motor branch to the cremaster muscle. Usually passes through deep inguinal ring and canal. Synonym: ramus genitalis nervi genitofemoralis, external spermatic nerve, nervus spermaticus externus. (05 Mar 2000) |
| genital branch of iliohypogastric nerve | <anatomy, nerve> Distribution, skin on pubis. Synonym: ramus cutaneus anterior nervi iliohypogastrici, genital branch of iliohypogastric nerve. (05 Mar 2000) |
| genitocrural nerve | <anatomy, nerve> Arises from the first and second lumbar nerves, passes distad along the anterior surface of psoas major muscle and divides into genital and femoral branches. Synonym: nervus genitofemoralis, genitocrural nerve. (05 Mar 2000) |
| genitofemoral nerve | <anatomy, nerve> Arises from the first and second lumbar nerves, passes distad along the anterior surface of psoas major muscle and divides into genital and femoral branches. Synonym: nervus genitofemoralis, genitocrural nerve. (05 Mar 2000) |
| parasympathetic nerve | <anatomy, nerve> One of the nerve's of the parasympathetic nervous system. (05 Mar 2000) |
| genu of facial nerve | <anatomy, nerve> The curve which the fibres of the root of the facial nerve describe around the abducens nucleus in the pontine tegmentum; the internal genu of the facial nerve. Synonym: genu nervi facialis. (05 Mar 2000) |
| caroticotympanic nerve | <anatomy, nerve> One of two sympathetic branches from the internal carotid plexus to the tympanic plexus. Synonym: nervus caroticotympanicus, small deep petrosal nerve. (05 Mar 2000) |
| vertebral nerve | <anatomy, nerve> A branch from the stellate ganglion that ascends along the vertebral artery to the level of the axis or atlas, giving branches to the cervical nerves and meninges. Synonym: nervus vertebralis. (05 Mar 2000) |
| carotid sinus nerve | <anatomy, nerve> A branch of the glossopharyngeal nerve that innervates the baroreceptors in the wall of the carotid sinus and the chemoreceptors in the carotid body. Synonym: ramus sinus carotici, carotid sinus branch, Hering's sinus nerve, intercarotid nerve, nerve to carotid sinus, sinus nerve of Hering. (05 Mar 2000) |
| masseteric nerve | <anatomy, nerve> A muscular branch of the mandibular nerve passing through the mandibular notch to the medial surface of the masseter muscle which it supplies and the temporomandibular joint. Synonym: nervus massetericus. (05 Mar 2000) |
| recurrent laryngeal nerve | <anatomy, nerve> A branch of a nerve (the vagus nerve) that comes down the neck and turns back ( recurs ) to supply the larynx (the voice box ). (12 Dec 1998) |
| recurrent meningeal nerve | <anatomy, nerve> Meningeal branches of 1) mandibular, 2) maxillary, 3) ophthalmic, and 4) spinal nerves. (05 Mar 2000) |