| 释义 |
middle cerebral artery
Thesaurus| Noun | 1. |  middle cerebral artery - one of two branches of the internal carotid artery; divides into three branchesarteria cerebri, cerebral artery - any of the arteries supplying blood to the cerebral cortex |
EncyclopediaSeearterymiddle cerebral artery
mid·dle ce·re·bral ar·ter·y [TA] one of the two large terminal branches (with anterior cerebral artery) of the internal carotid artery; it passes laterally around the pole of the temporal lobe, then posteriorly in the depth of the lateral cerebral fissure; for descriptive purposes it is divided into three parts: 1) the sphenoidal part (M1 segment of clinical terminology), supplying perforating branches to the internal capsule, thalamus, and striate body; 2) the insular part, supplying branches to the insula and adjacent cortical areas; and 3) the terminal part or cortical part, supplying a large part of the central cortical convexity (the latter two collectively forming M2 segment). Synonym(s): arteria cerebri media [TA]mid·dle ce·re·bral ar·te·ry (mid'el ser'ĕ-brăl ahr'tĕr-ē) [TA] One of the two large terminal branches (with the anterior cerebral artery) of the internal carotid artery; it passes laterally around the pole of the temporal lobe, then posteriorly in the depth of the lateral cerebral fissure.
Synonym(s): arteria cerebri media. middle cerebral artery Abbreviation: MCA
The continuation of the internal carotid artery beyond the circle of Willis. It runs along the lateral (Sylvian) fissure between the frontal and temporal lobes. Branches of the middle cerebral artery supply blood to the frontal, orbital, parietal, and temporal lobes of the brain. Strokes involving the middle cerebral artery often result in sensory deficits and muscle weakness on the contralateral side of the body; when a middle cerebral artery stroke is in the dominant side of the brain, the patient can also have aphasia. See: brain (Major arteries of the brain) and circle of Willis for illus. See also: arteryAcronymsSeemotorcycle accidentmiddle cerebral artery
Related to middle cerebral artery: anterior cerebral artery, posterior cerebral arteryWords related to middle cerebral arterynoun one of two branches of the internal carotid arteryRelated Words- arteria cerebri
- cerebral artery
|