| 释义 |
ventral horn
Thesaurus| Noun | 1. | ventral horn - one of two the two roots of a spinal nerve that passes ventrally from the spinal cord and that consists of motor fibersanterior horn, anterior root, ventral rootefferent, efferent nerve, motor nerve - a nerve that conveys impulses toward or to muscles or glandsnervus spinalis, spinal nerve - any of the 31 pairs of nerves emerging from each side of the spinal cord (each attached to the cord by two roots: ventral and dorsal) |
EncyclopediaSeeanterior hornventral horn
an·te·ri·or horn [TA] 1. the frontal or anterior division of the lateral ventricle of the brain, extending forward from the Monro interventricular foramen;
See also: anterior column, gray columns. 2. the anterior horn or anterior (ventral) gray column of the spinal cord as appearing in cross section. The anterior horn is composed of the spinal laminae VIII and IX [TA] of Rexed with portions of VII also extending into its geographical boundaries in lumbosacral and cervical levels. The nuclei of the anterior horn are the anterolateral nucleus [TA] or ventrolateral nucleus [TAalt] (nucleus anterolateralis [TA]), anterior nucleus [TA] (nucleus anterior [TA]), anteromedial nucleus [TA] or ventromedial nucleus [TAalt] (nucleus anteromedialis [TA]), posterolateral nucleus [TA] or dorsolateral nucleus [TAalt] (nucleus posterolateralis [TA]), retroposterior lateral nucleus [TA] or retrodorsal lateral nucleus [TAalt] (nucleus retroposterolateralis [TA]), posteromedial nucleus [TA] or dorsomedial nucleus [TAalt] (nucleus posteromedialis [TA]), central nucleus [TA] (nucleus centralis [TA]), and the accessory nucleus and phrenic nucleus (both found in cervical levels only).
See also: anterior column, gray columns. Synonym(s): cornu anterius [TA], ventral hornan·te·ri·or horn (an-tēr'ē-ŏr hōrn) [TA] 1. The anterior or frontal division of the lateral ventricle of the brain, extending forward from Monro interventricular foramen.
See: lateral ventricle2. The anterior or ventral gray column of the spinal cord as appearing in cross-section.
See also: gray columns
Synonym(s): cornu anterius [TA] , precornu, ventral horn. horn (horn) A cutaneous outgrowth composed chiefly of keratin; a hornlike projection. Synonym: cornuhorn of AmmonHippocampus.anterior horn The main column of neuron cell bodies and unmyelinated cell processes ( gray matter) running through the ventral quadrant of each half of the spinal cord. In stained cross-sections of spinal cord, the gray matter forms the rough shape of a butterfly; the anterior horns are the lower wings. Synonym: ventral horn See: spinal cordcicatricial hornA cutaneous horn originating in scar tissue. cutaneous hornA hard, horny outgrowth from the skin. It is slow-growing, benign, and may be small or large, 10 to 12 cm, in diameter. dorsal hornThe main column of neuron cell bodies and unmyelinated cell processes (ie, gray matter) running through the dorsal quadrant of each half of the spinal cord. In stained cross-sections of spinal cord, the gray matter forms the rough shape of a butterfly; the dorsal horns are the upper wings. Synonym: posterior horn See: spinal cord intermediolateral hornLateral horn.lateral hornA column of neuron cell bodies and unmyelinated cell processes (ie, gray matter) running through the lateral quadrant of spinal cord segments C8–L2 In stained cross-sections of spinal cord, the lateral horns form a small bulge of gray matter between the dorsal and ventral horns. The lateral horns contain the preganglionic cell bodies of the sympathetic nervous system. Synonym: intermediolateral horn; intermediolateral cell column; zona intermedia See: spinal cordposterior horn Dorsal horn.sebaceous hornA hard protrusion from a sebaceous gland. uterine hornEither of the two upper corners of the uterus into which the uterine tubes enter.ventral hornAnterior horn.warty hornA hard outgrowth from a wart.ventral horn
Related to ventral horn: ventral column, Lateral hornSynonyms for ventral hornnoun one of two the two roots of a spinal nerve that passes ventrally from the spinal cord and that consists of motor fibersSynonyms- anterior horn
- anterior root
- ventral root
Related Words- efferent
- efferent nerve
- motor nerve
- nervus spinalis
- spinal nerve
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