![]() ![]() Finally, if the MCA stroke occurs in the non-dominant hemisphere, patients may present with hemineglect. If the infarct occurs in the inferior division, then patients will exhibit Wernicke's aphasias, which is often associated with a visual field defect in the right superior quadrant. If the stroke occurs in the superior division of the middle cerebral artery, patients will exhibit Broca’s aphasia. This aphasia can be split further depending on the location of the infarct. If the stroke occurs on the dominant side of the brain, patients can present with aphasia, or an impaired ability to speak. Additional neurological deficits can vary depending on the side of the brain that is affected. In particular, this leads to motor and sensory deficits in the upper limbs and face. Blockages of this artery in the context of a stroke leads to damage to both the motor and sensory cortices of the brain. General anatomy textbooks divide the posterior cerebral artery into three segments P1, P2 and P3. Summary The middle cerebral artery, or MCA for short, is a major blood vessel that supplies the cerebral cortex of the brain. The lateral branch of the PICA supplies the inferior and posterior surface of the cerebellar hemispheres.11 The perforator branches of the basilar artery supply. ![]()
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