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Anatomy General 90f5ccfa

Circulus arteriosus is formed by

A
Anterior communicating artery.
B
Basilar artery.
C
Anterior, posterior cerebral and posterior communicating artery.
D
All of the above.
High-Yield Explanation
Circulus arteriosus or "circle of Willis" is a anatomical peculiarity of cerebral arteries. It is formed by • Anteriorly by anterior communicating artery. • Posteriorly by basilar artery. • On each side by anterior cerebral, posterior cerebral, posterior communicating and internal carotid arteries.
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