| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
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| NTV | nerve tissue vaccine |
| OMN | oculomotor nerve |
| ON | occipitonuchal; office nurse; onlay; optic nerve; orthopedic nurse; osteonecrosis; osteonectin; over... |
| ONG | optic nerve glioma |
| autonomic nerve block | Interruption of sympathetic pathways, by local injection of an anaesthetic agent, at any of four levels: peripheral nerve block, sympathetic ganglion block, extradural block, and subarachnoid block. (12 Dec 1998) |
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| axillary nerve | <anatomy, nerve> Arises from the posterior cord of the brachial plexus in the axilla, passes laterally and posteriorly through quadrangular space with the posterior circumflex artery, winding round the surgical neck of the humerus to supply the deltoid and teres minor muscles, terminating as the superior lateral brachial cutaneous nerve. Synonym: nervus axillaris, circumflex nerve. (05 Mar 2000) |
| axillary nerve injury | <neurology> A condition involving dysfunction of the axillary nerve which normally supplies the deltoid and teres minor muscles and sensation to the lateral aspect of the shoulder. This condition is a type of peripheral neuropathy that may manifest as the result of a variety of disease processes or injuries. Conditions associated with axillary nerve dysfunction include mononeuritis multiplex, fracture of the humerus, abduction injury to the shoulder, pressure to the armpit from a cast, splint or crutches. Symptoms include numbness over the outer portion of the shoulder, shoulder weakness and difficulty lifting arm or objects over your head. An EMG, nerve conduction study or muscle biopsy can be helpful in making the diagnosis. Recovery is generally spontaneous if the underlying cause can be corrected and shoulder mobility is preserved. Corticosteroid injections may be indicated in some instances. (02 Jan 1998) |
| baroreceptor nerve | <anatomy, nerve> A nerve composed of afferent fibres the endings of which are sensitive to increases in mechanical pressure; the term specifically refers to sensory nerve's innervating the walls of hollow organs. Synonym: baroreceptor nerve. (05 Mar 2000) |
| Bell's respiratory nerve | <anatomy, nerve> Arises from the fifth, sixth, and seventh cervical nerves (roots of brachial plexus), descends the neck behind the brachial plexus, and is distributed to the serratus anterior muscle; it is somewhat unusual in that it courses on the superficial aspect of the muscle is supplies; its paralysis results in "winged scapula". Synonym: nervus thoracicus longus, Bell's respiratory nerve, external respiratory nerve of Bell, posterior thoracic nerve. (05 Mar 2000) |
| biopsy, nerve | <investigation, procedure, surgery> A procedure which involves the removal of a small specimen of nerve tissue for microscopic analysis. The ankle or wrist are the most common sites used for nerve biopsy. Conditions such as amyloidosis, sarcoidosis, metabolic polyneuropathy, leprosy, demyelination, alcoholic neuropathy, Charcot-Marie-tooth disease, peroneal nerve dysfunction, mononeuritis multiplex and other polyneuropathies may be detected using this study. (21 Mar 1998) |
| Bock's nerve | Branch of pterygopalatine ganglion passing posteriorly through pharyngeal canal to supply postsynaptic parasympathetic fibres to mucus glands of nasopharynx. Synonym: ramus pharyngeus ganglii pterygopalatini, Bock's nerve. (05 Mar 2000) |
| branch of auriculotemporal nerve to tympanic membrane | Sensory branch of the auriculotemporal nerve supplying the external surface of the tympanic membrane. Synonym: ramus membranae tympani nervi auriculotemporalis, nerve of tympanic membrane. (05 Mar 2000) |
| branch of glossopharyngeal nerve to stylopharyngeus muscle | <anatomy> Sole motor branch of the glossopharyngeal nerve to the stylopharyngeus muscle. Synonym: ramus musculi stylopharyngei nervi glossopharyngei. (05 Mar 2000) |
| buccinator nerve | <anatomy, nerve> A sensory branch of the mandibular division of the trigeminal nerve; it passes downward emerging from beneath the ramus of the mandible to run forward on the buccinator muscle, piercing (but not supplying) it to supply the buccal mucous membrane and skin of the cheek near the angle of the mouth. Synonym: nervus buccalis, buccinator nerve, long buccal nerve. (05 Mar 2000) |
| vagal part of accessory nerve | <anatomy, nerve> The roots of the accessory nerve which arise from the medulla; the nerve fibres of the cranial root join the intracranial portion of the vagus nerve and are distributed to the pharyngeal plexus, providing the motor innervation of the soft palate (except the tensor veli palati) and the pharynx. Synonym: pars vagalis nervi accessorii, radices craniales, accessory portion of spinal accessory nerve, cranial roots, vagal part of accessory nerve, vagal part. (05 Mar 2000) |
| radial 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) |
| Galen's nerve | <anatomy, nerve> Branch of internal branch of superior laryngeal nerve communicating with the recurrent laryngeal nerve in the wall of the laryngopharynx supplying sensory fibres to the latter. Synonym: ramus communicans nervi laryngei recurrentis cum ramo laryngeo interno, ramus communicans nervi laryngei superioris cum nervo laryngeo recurrenti, Galen's anastomosis, Galen's nerve. (05 Mar 2000) |
| vagus 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) |
| Valentin's nerve | <anatomy, nerve> A nerve that connects the pterygopalatine ganglion with the abducens nerve. (05 Mar 2000) |