circle of Willis

(redirected from Circulus arteriosus cerebri)
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Related to Circulus arteriosus cerebri: circle of Willis
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Noun1.circle of Willis - a ring of arteries at the base of the brain
arteria, arterial blood vessel, artery - a blood vessel that carries blood from the heart to the body
brain, encephalon - that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord