middle cerebral artery

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Related to Middle cerebral arteries: Anterior cerebral arteries

mid·dle ce·re·bral ar·ter·y

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]
Farlex Partner Medical Dictionary © Farlex 2012

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.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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: artery
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Deficits from a brain attack affecting the frontal lobe's anterior and middle cerebral arteries manifest a variety of symptoms.
Specificity and Sensitivity Comparison between various Indices of Umbilical, Middle Cerebral Arteries and Descending Thoracic Aorta Indices Umbilical Artery (In %) Middle Cerebral Artery (In %) Specificity Sensitivity Specificity Sensitivity [RI.sub.1] 93 73 53.3 39 [RI.sub.2] 66 78 33.3 52.1 [RI.sub.3] 60 82.6 42.8 60.8 [PI.sub.1] 93 65.2 40 52.1 [PI.sub.2] 73 78 13.33 73.9 [PI.sub.3] 60 91.3 21.4 82.6 S/[D.sub.1] 93.3 56.5 40 52.1 S/[D.sub.2] 86 69 33.33 60.8 S/[D.sub.3] 80 69 53.3 56.5 Indices Descending Thoracic Aorta (In %) Specificity Sensitivity [RI.sub.1] 66.6 43.4 [RI.sub.2] 73.33 43.4 [RI.sub.3] 64.28 43.4 [PI.sub.1] 73.3 34.78 [PI.sub.2] 66.6 34.7 [PI.sub.3] 64.28 34.7 S/[D.sub.1] 80 34.7 S/[D.sub.2] 86.66 30.4 S/[D.sub.3] 92.85 17.39
Histological features of middle cerebral arteries from patients treated for moyamoya disease.
Successful recanalization was defined as final Thrombolysis in Myocardial Infarction (TIMI) grade 2 or 3 flow in all treatable vessels (internal carotid artery, terminus of the internal carotid artery, and middle cerebral arteries 1 and 2).
Doppler evaluation of umbilical and middle cerebral arteries has an important role in the early diagnosis of clinically suspected growth retardation.
MRA showed stenotic lesions involving the supraclinoid and paraclinoid segments of both right and left internal carotid arteries extending into the M1 segment of middle cerebral arteries. Collateral supply to anterior cerebral arteries was present through the ethmoidal branches of ophthalmic arteries.