Left artery of precentral sulcus (Arteria sulci precentralis)
Educational content only — not medical advice.
Anatomy
A cortical branch of the middle cerebral artery ascending in the precentral sulcus, supplying the premotor cortex and Broca's motor speech area in the dominant hemisphere.
Clinical notes
Infarction in the dominant hemisphere causes classic Broca's nonfluent expressive aphasia with preserved comprehension, often accompanied by contralateral facial weakness.
Related structures
Educational references
FAQ
What is the role of the Left artery of precentral sulcus?
A cortical branch of the middle cerebral artery ascending in the precentral sulcus, supplying the premotor cortex and Broca's motor speech area in the dominant hemisphere.
Why is the Left artery of precentral sulcus clinically important?
Infarction in the dominant hemisphere causes classic Broca's nonfluent expressive aphasia with preserved comprehension, often accompanied by contralateral facial weakness.
Source & license
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