middle cerebral artery

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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 ?
The peak systolic flow rate in the anterior carotid artery, middle cerebral artery and posterior cerebral artery, and the mean flow rate, PI, and RI values of volunteers are summarized in Table 2.
Prediction of malignant middle cerebral artery infarction by magnetic resonance imaging within 6 hours of symptom onset: A prospective multicenter observational study.
* Documented anterior circulation large-vessel occlusion (proximal middle cerebral artery, anterior cerebral or internal carotid artery).
The most commonly involved artery was middle cerebral artery (MCA) in 55% of cases (n=12) followed by internal carotid artery in 14% (n=3) and anterior cerebral artery in 9% (n=2) (fig-3).
In MRA, we found near complete obliteration of the left middle cerebral artery by thrombi/emboli that strongly suggested AIS (figure 3).
Ltd., China) into the right external carotid artery and advancing it to occlude the middle cerebral artery for 60 minutes before the filament was withdrawn.
Tominaga, "Symptomatic hyperperfusion after superficial temporal artery Middle cerebral artery anastomosis in a child with moyamoya disease," Child's Nervous System, vol.
Prior to therapy (a): prolonged mean transit time in large parts of the left middle cerebral artery territory as well as both posterior cerebral artery territories and an area with only moderately elevated transit time was found in the left insular cortex (white circle).
Under these certain criteria, included patients were grouped as: anterior cerebral artery (ACA) affected, middle cerebral artery (MCA) affected, and posterior circulation (P.
Susceptibility-diffusion mismatch in middle cerebral artery territory acute ischemic stroke: Clinical and imaging implications.
Type A: Unilateral ICA agenesis; flow into the ipsilateral anterior cerebral artery (ACA) via the anterior communicating artery (AComm), and flow into the ipsilateral middle cerebral artery (MCA) via flow through the ipsilateral posterior communicating artery (PComm).

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