middle cerebral artery

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Related to Middle cerebral arteries: Anterior cerebral arteries

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]

middle cerebral artery

the largest of the cerebral arteries and the vessel most commonly affected by cerebrovascular accident.

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: artery
References in periodicals archive ?
Morphologic characteristics of atherosclerotic middle cerebral arteries on 3T high-resolution MRI.
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).
The subsequent pregnancies should be monitored for intrauterine growth retardation with intensive bi-weekly fetal Doppler of umbilical and middle cerebral arteries.
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.
The gold standard test for diagnosing Moya moya is radio-imaging with CT scanning or MRA showing stenosis or occlusion at the terminal portion of the internal carotid artery or the proximal portion of the anterior or middle cerebral arteries with abnormal vascular networks in the vicinity of the stenosed areas.
Narula et al (15) concluded that in normal pregnancy there is gestational age related fall in impedance in umbilical and middle cerebral arteries.

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