circle of Wil|lis

circle of Wil|lis
circle of Wil|lis «WIHL ihs»,
Anatomy. a circle formed by several connecting cerebral arteries at the base of the brain.
[< Thomas Willis, 1621-1675, an English anatomist]

Useful english dictionary. 2012.

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  • Circle of Willis — The circle of Willis is an arterial circle of critical importance at the base of the brain. It is called an arterial anastomosis, a joining of arteries. The circle of Willis receives all of the blood pumped up the two internal carotid arteries… …   Medical dictionary

  • Willis circle cord etc. — Wil·lis circle, cord, etc. (wilґis) [Thomas Willis, English anatomist and physician, 1621–1675] see circulus arteriosus cerebri and nervus accessorius, and see under cord and paracusis …   Medical dictionary

  • literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …   Universalium

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