MCA vs. ACA Stroke: Contrast the motor and sensory homunculus deficits observed in Middle Cerebral Artery (MCA) infarction versus Anterior Cerebral Artery (ACA) infarction.
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Vascular Territory Homunculus Localization:
- Middle Cerebral Artery (MCA):
- Supplies the lateral cerebral convexity.
- Deficit: Contralateral hemiparesis and hemisensory loss predominantly affecting the FACE and UPPER EXTREMITY (Arm > Leg).
- Associated signs: Aphasia (if dominant left hemisphere), hemineglect (if non-dominant right hemisphere).
- Anterior Cerebral Artery (ACA):
- Supplies the medial parasagittal cortex.
- Deficit: Contralateral hemiparesis and sensory deficit predominantly affecting the LOWER EXTREMITY (Leg > Arm) + urinary incontinence.
Rate recall difficulty to calibrate repetition: