| 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 |
| NGF | nerve growth factor |
| motor root of trigeminal nerve | <anatomy, nerve> The smaller root of the trigeminal nerve, composed of fibres originating from the trigeminal motor nucleus and emerging from the pons medial to the much larger sensory root, to join the mandibular nerve; it carries motor and proprioceptive fibres to the muscles derived from the first bronchial (mandibular) arch, including the four muscles of mastication, plus the mylohyoid, anterior belly of the digastric, and the tensores tympani and veli palati. Synonym: radix motoria nervi trigemini, masticator nerve, portio minor nervi trigemini. (05 Mar 2000) |
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| Wrisberg's nerve | <anatomy, nerve> Arises from the medial cord of the brachial plexus, unites in the axilla with the lateral cutaneous branch of the second intercostal nerve, and supplies the skin of the medial side of the arm. Synonym: nervus cutaneus brachii medialis, lesser internal cutaneous nerve, medial cutaneous nerve of arm, Wrisberg's nerve. (05 Mar 2000) |
| musculocutaneous nerve | <anatomy, nerve> A major nerve of the upper extremity. The fibres of the musculocutaneous nerve originate in the lower cervical spinal cord (usually c5 to c7), travel via the lateral cord of the brachial plexus, and supply sensory and motor innervation to the upper arm, elbow, and forearm. (12 Dec 1998) |
| musculocutaneous nerve of leg | <anatomy, nerve> A branch of the common peroneal nerve which passes downward in the lateral compartment of the leg to supply the peroneus longus and brevis muscles and terminate as the intermediate and medial dorsal cutaneous nerves supplying the skin of the dorsum of the foot and toes (except for adjacent sides of great and second toes). Synonym: nervus fibularis superficialis, nervus peroneus superficialis, musculocutaneous nerve of leg, superficial fibular nerve. (05 Mar 2000) |
| musculospiral nerve | <anatomy, nerve> A major nerve of the upper extremity. In humans the fibres of the radial nerve originate in the lower cervical and upper thoracic spinal cord (usually c5 to t1), travel via the posterior cord of the brachial plexus, and supply motor innervation to extensor muscles of the arm and cutaneous sensory fibres to extensor regions of the arm and hand. (12 Dec 1998) |
| pneumogastric nerve | <anatomy, nerve> The vagus nerve enervates the gut (gastrointestinal tract), heart and larynx. Lesions of the tenth nerve usually result in a horse voice, but may also cause difficulty in swallowing or talking. Synonym: cranial nerve X. (27 Sep 1997) |
| myelinated nerve | <anatomy, nerve> A peripheral nerve whose axons are surrounded by layers of Schwann cell membranes that form the myelin sheath; also called medullated nerves. (05 Mar 2000) |
| myelinated nerve fibre | An axon enveloped by a myelin sheath formed by oligodendroglia cells (in brain and spinal cord) or Schwann cells (in peripheral nerves). Synonym: medullated nerve fibre. (05 Mar 2000) |
| mylohyoid nerve | <anatomy, nerve> A small branch of the inferior alveolar nerve given off posteriorly just before the nerve enters the mandibular foramen, distributed to the anterior belly of the digastric muscle and to the mylohyoid muscle. Synonym: nervus mylohyoideus, nerve to mylohyoid. (05 Mar 2000) |
| cranial nerve I | <anatomy, nerve> The olfactory nerve carries impulses for the sense of smell. Synonym: cranial nerve I. (27 Sep 1997) |
| cranial nerve II | <anatomy, nerve> The optic nerve. The nerve carrying impulses for the sense of sight. Projection from the vertebrate retina to the midbrain. Embryologically, a CNS tract rather than a peripheral nerve. Popular experimental preparation for studies of regeneration of retino tectal projections in lower vertebrates and also for studies of glial cell lineage in CNS. Synonym: cranial nerve II. (18 Nov 1997) |
| cranial nerve III | <anatomy, nerve> The occulomotor nerve is responsible for motor enervation of upper eyelid muscle, extraocular muscle and pupillary muscle. Lesions of the oculomotor nerve results in ptosis (dropping eyelid), deviation of the eyeball outward, double vision and a dilated pupil. Synonym: cranial nerve III. (27 Sep 1997) |
| cranial nerve IV | <anatomy, nerve> The trochlear nerve controls an extraocular muscle. Lesions of this nerve will result in rotation of the eyeball upward and outward (and double vision). Synonym: cranial nerve IV. (27 Sep 1997) |
| cranial nerve IX | <anatomy, nerve> The glossopharyngeal nerve enervates muscles involved in swallowing and taste. Lesions of the ninth nerve result in difficulty swallowing and disturbance of taste. Synonym: cranial nerve IX. (27 Sep 1997) |
| cranial nerve neoplasms | Neoplasms of any of the cranial nerves. (12 Dec 1998) |