Unpaired structure in the brain_______________?
Correct answer: A. Basilar artery
- A. Basilar artery
- B. Vertebral artery
- C. Middle cerebral artery
- D. Anterior cerebral artery
Explanation
The basilar artery is an unpaired artery formed by the union of the two vertebral arteries on the ventral surface of the pons. The middle and anterior cerebral arteries occur as right and left paired vessels.
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