Neurovascular Anatomy: Internal Carotid Artery: Middle Cerebral Artery: Horizontal Segment

Middle Cerebral Artery

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Horizontal (M1) Segment
Middle Cerebral Artery

Branches include lateral lentciulostriate arteries.

NEUROVASCULAR SYNDROME
Unilateral occlusion of
Proximal M1 Segment
results in deficits in:

MOTOR
Contralateral Hemiplega
(face and arm, lower extremity less affected.

SENSORY
Homonoymous Hemianopia + Deviation of head/eyes toward the side of the lesion.

LANGUAGE
LEFT lesions: Global aphasia.
RIGHT lesions: Anosognosia.