anterior cerebral artery

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an·te·ri·or ce·re·bral ar·ter·y

[TA]
one of the two terminal branches (with middle cerebral artery) of the internal carotid; it passes anteriorly, loops around the genu of the corpus callosum, and then passes posteriorly in the longitudinal fissure along with its fellow of the opposite side, the two being joined by the anterior communicating artery [TA]. For descriptive purposes, it is divided into two parts: 1) the precommunicating part [TA] (A1 segment in clinical terminology), which gives rise to the anteromedial central arteries [TA], consisting of proximal medial striate arteries [TA], the supraoptic artery [TA], anterior perforating arteries [TA], and preoptic arteries [TA] and 2) a postcommunical part [TA] (A2 segment), which gives rise to a distal medial striate artery [TA], medial frontobasal artery [TA], polar frontal artery [TA], and two large terminal branches: the pericallosal artery [TA] and the callosomarginal artery [TA]. The latter two have branches that serve specific regions of the cortex.
Synonym(s): arteria cerebri anterior [TA]

an·te·ri·or ce·re·bral ar·te·ry

(an-tēr'ē-ŏr ser'ĕ-brăl ahr'tĕr-ē) [TA]
One of two terminal branches (with middle cerebral artery) of internal carotid; passes anteriorly, loops around genu of corpus callosum, then passes posteriorly in interhemispheric fissure along with its fellow of opposite side, the two being joined by the anterior communicating artery.
Synonym(s): arteria cerebri anterior.

anterior cerebral artery

An artery that supplies blood to the medial side of the cerebral hemisphere and the corpus callosum; it is part of the circle of Willis, and it branches from the internal carotid artery at the base of the brain. The anterior cerebral artery anastomoses with the contralateral anterior cerebral artery via the anterior communicating artery.
See: brain (Major arteries of the brain) and circle of Willis for illus.
See also: artery

an·te·ri·or ce·re·bral ar·te·ry

(an-tēr'ē-ŏr ser'ĕ-brăl ahr'tĕr-ē) [TA]
One of two terminal branches (with middle cerebral artery) of internal carotid; passes anteriorly, loops around the genu of the corpus callosum, and then passes posteriorly in the longitudinal fissure along with its fellow of the opposite side, the two being joined by the anterior communicating artery [TA].
References in periodicals archive ?
Both middle and anterior cerebral artery###6(75%)###2(25%)###8(100%)###p=0.55
The aim of this study was to determine the prevalence and morphometric characteristics of anatomical variants of the AComA and the precommunicating (A1) and postcommunicating (A2) segments of the anterior cerebral artery by cerebral computerized angiotomography with 3D reconstruction (3D CTA).
[M - Male; F - Female; MCA - Middle cerebral artery; PCA - Posterior cerebral artery; and ACA - Anterior cerebral artery].
Anastomosis of the superficial temporal artery to the distal anterior cerebral artery with interposed cephalic vein graft.
The anterior cerebral arteries are the major blood supply for the medial surfaces of the cerebral hemispheres.
The left and right MCAs arise from bifurcations of the internal carotid arteries and thus are connected to the anterior cerebral arteries and the posterior communicating arteries, which connect to the posterior cerebral arteries.
Angle formation between the A1 portion of the anterior cerebral artery and the anterior communicating artery (ACoA) (A1-ACoA).
MR angiography, determined occlusion at the right supraclinoid internal carotid artery (ICA), about 80 % shrinkage in the left ICA and basilar artery, and filling of the bilateral middle cerebral artery (MCA), anterior cerebral artery (ACA) and posterior cerebral arteries (PCA) via collaterals (Figure-2a).
Most of them occur in the anterior circulation along the ICA (cavernous, ophthalmic, and paraclinoid segments), middle cerebral artery (MCA), and anterior cerebral artery (anterior communicating complex--AcommA) (3,6,7,8,9,10,11,12,13).
The right middle cerebral artery and anterior cerebral artery arose from the right ICA, the left anterior cerebral artery was fed by the contralateral anterior cerebral artery via anterior communicating artery.
Vasospasm is more prevalent with the rupture of the anterior cerebral and middle cerebral arteries, affecting the cortical motor and sensory areas, Broca's area, internal capsule, temporal lobe and corpus callosum.[1,5,28]
His brain magnetic resonance imaging (MRI) revealed acute cerebral ischemia in the territory of the left anterior cerebral artery (ACA) and subacute cerebral ischemia in the territory of the posterior cerebral artery (PCAFigure 1).

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