Neurovascular Anatomy: Internal Carotid Artery: Anterior Cerebral Artery |
Anterior Cerebral Artery
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Move
the cursor along the course of the anterior and middle cerebral artery
and its branches
to identify individual segments and their perfusion targets. |
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A1
Segment |
From Internal Carotid Bifurcation to Anterior Communicating Artery. A1 Branches: NEUROVASCULAR
SYNDROME Penetrating
Branches:
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Anterior
Communicating Artery
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Connects
bilateral anterior circulations. |
Recurrent
Artery of Heubner
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Supplies head of caudate
and anteroinferior internal capsule. |
Pericallosal
Artery
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Continuation
of the Anterior Cerebral Artery as it arches superiorly and posteriorly. |
Horizontal
(M1) Segment
Middle Cerebral Artery |
Branches include lateral lentciulostriate arteries. NEUROVASCULAR
SYNDROME SENSORY
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Sylvian
(M2) Segment
Middle Cerebral Artery |
Segment divides into superior and inferior divisions which can be a site for an embolus to lodge. Branches
supply: Inferior
Division Infarction: |
Cortical
(M3) Segment
Middle Cerebral Artery |
Distal branches of MCA course laterally to insular cortex and loop around operculum - "Candelabra" effect seen on lateral angiograms. Embolization of individual cortical branches can produce highly circumscribed infarctions accompanied by specific neurologic deficits.
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Lateral Lenticulostriate Arteries
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Branch of M1 Segment of MCA. Supplies basal ganglia structures: Part of head and body of caudate, globus pallidus, putamen, and the posterior limb of the internal capsule. NEUROVASCULAR
SYNDROME
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