| special visceral efferent column | A column of gray matter in the hindbrain of the embryo, represented in the adult by the trigeminal and facial nuclei and the nucleus ambiguus. (05 Mar 2000) |
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| special visceral efferent nuclei | Collective term for those motoneuronal nuclei of the brainstem (n. Ambiguus, facial motor nucleus, motor nucleus of the trigeminus) that develop from the branchiomotor column of the embryo and innervate striated muscle fibres (muscles of mastication, facial musculature, pharynx and vocal cord muscles) developed from the mesenchyme of the branchial arches. Synonym: special visceral efferent nuclei, special visceral motor nuclei. (05 Mar 2000) |
| nerve, efferent | A nerve that carries impulses away from the central nervous system. The word efferent comes from the latin ex', away or out + ferre , to bear = to bear out or carry away. (12 Dec 1998) |
| efferent | Moving or carrying outward or away from a central part. Refers to vessels, nerves, etc. For example: blood vessels carrying blood away from the heart or nerves carrying signals from the brain. Compare: afferent. (09 Oct 1997) |
| efferent duct | One of 12 to 14 small seminal ducts leading from the testis to the head of the epididymis. Synonym: ductulus efferens testis, vas efferens, efferent duct. (05 Mar 2000) |
| efferent ductules of testis | One of 12 to 14 small seminal ducts leading from the testis to the head of the epididymis. Synonym: ductulus efferens testis, vas efferens, efferent duct. (05 Mar 2000) |
| efferent fibres | Those fibres conveying impulses to effector tissues (muscle: smooth, cardiac or striated; or glands) in the periphery; those fibres exiting a specific cell group (i.e., efferent fibres of the basilar pons), used in reference to a cell group. (05 Mar 2000) |
| efferent glomerular arteriole | The vessel that carries blood from the glomerular capillary network to the capillary bed of the proximal convoluted tubule; collectively, these vessels constitute the renal portal system. Synonym: arteriola glomerularis efferens, vas efferens, efferent vessel. (05 Mar 2000) |
| efferent lymphatic | A vein carrying blood away from a part. Synonym: efferent lymphatic. Synonym: efferent glomerular arteriole. Synonym: efferent ductules of testis. (05 Mar 2000) |
| efferent nerve | <anatomy, nerve> A nerve which transmits impulses from the brain and spinal cord to a muscle or organ. (27 Sep 1997) |
| efferent pathways | Nerve structures through which impulses are conducted from a nerve centre toward a peripheral site. (12 Dec 1998) |
| efferent vessel | A vessel carrying blood away from the heart. An artery or arteriole. (12 Dec 1998) |