| SNRB | selective nerve root block |
|---|---|
| SRT | sedimentation rate test; simple reaction time; sinus node recovery time; sitting root test; speech r... |
| VR | right arm [electrode]; valve replacement; variable ratio; vascular resistance; venous reflux; venous... |
| VRP | ventral root potential |
| VRR | ventral root reflex |
| ganglion pterygopalatinum | A small parasympathetic ganglion in the upper part of the pterygopalatine fossa whose postsynaptic fibres supply the lacrimal, nasal, palatine and pharyngeal glands. Synonym: ganglion pterygopalatinum, Meckel's ganglion, nasal ganglion, sphenopalatine ganglion. (05 Mar 2000) |
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| ganglion ridge | A group of embryonic cells that separate from the neural plate during neurulation and migrate to give several different lineages of adult cells: the spinal and autonomic ganglia, the glial cells of the peripheral nervous system and nonneuronal cells, such as chromaffin cells, melanocytes and some haemopoietic cells. (18 Nov 1997) |
| ganglion spinale | <anatomy> Enlargement of the dorsal root of the spinal cord containing cell bodies of afferent spinal neurons. Neural outgrowth from dorsal root ganglia has been studied extensively in vitro. (18 Nov 1997) |
| ganglion spirale cochleae | An elongated ganglion of bipolar sensory nerve cell bodies on the cochlear part of the vestibulocochlear nerve in the spiral canal of the modiolus; each ganglion cell gives rise to a peripheral process that passes between the layers of the bony spiral lamina to the organ of Corti, and a central axon that enters the hindbrain as a component of the inferior (cochlear) root of the eighth nerve. Synonym: ganglion spirale cochleae, auditory ganglion, cochlear ganglion, Corti's ganglion, spiral cochlear ganglion. (05 Mar 2000) |
| ganglion splanchnicum | Ha small sympathetic ganglion often present in the course of the greater splanchnic nerve. Synonym: ganglion splanchnicum, Lobstein's ganglion. (05 Mar 2000) |
| ganglion stellatum | An alternate term for cervicothoracic ganglion. (05 Mar 2000) |
| ganglion sublinguale | A tiny ganglion occasionally found anterior to the submandibular ganglion, of which it is a displaced portion; innervates the sublingual gland. Synonym: ganglion sublinguale. (05 Mar 2000) |
| ganglion submandibulare | A small parasympathetic ganglion suspended from the lingual nerve; its postganglionic branches go to the submandibular and sublingual glands; its preganglionic fibres come from the superior salvatory nucleus by way of the chorda tympani. Synonym: ganglion submandibulare, submaxillary ganglion. (05 Mar 2000) |
| ganglion superius nervi glossopharyngei | <anatomy, nerve> The upper and smaller of two ganglia on the glossopharyngeal nerve as it traverses the jugular foramen. Synonym: ganglion superius nervi glossopharyngei, Ehrenritter's ganglion, intracranial ganglion, jugular ganglion. (05 Mar 2000) |
| ganglion superius nervi vagi | <anatomy, nerve> A small sensory ganglion on the vagus as it traverses the jugular foramen. Synonym: ganglion superius nervi vagi, jugular ganglion. (05 Mar 2000) |
| ganglion terminale | One of the cells located along the terminal nerves, one of the scattered postganglionic autonomic neurons located in or close to the wall of the organ innervated; they are usually parasympathetic. Synonym: ganglion terminale. (05 Mar 2000) |
| ganglion trigeminale | The semilunar-shaped ganglion containing the cells of origin of most of the sensory fibres of the trigeminal nerve. It is situated within the dural cleft on the cerebral surface of the petrous portion of the temporal bone and gives off the ophthalmic, maxillary, and part of the mandibular nerves. (12 Dec 1998) |
| ganglion tympanicum | A small ganglion on the tympanic nerve during its passage through the petrous portion of the temporal bone. Synonym: ganglion tympanicum. (05 Mar 2000) |
| ganglion vertebrale | A small ganglion located along the sympathetic trunk or one of the nerve cords connecting the middle cervical ganglion and the cervicothoracic ganglion; it usually lies near the vertebral artery. Synonym: ganglion vertebrale. (05 Mar 2000) |
| ganglion vestibulare | A collection of bipolar nerve cell bodies forming a swelling on the vestibular part of the eighth nerve in the internal acoustic meatus; consists of a superior part and an inferior part connected by a narrow isthmus. Synonym: ganglion vestibulare, Scarpa's ganglion. (05 Mar 2000) |