WILLIS CIRCLE
\wˈɪlis sˈɜːkə͡l], \wˈɪlis sˈɜːkəl], \w_ˈɪ_l_i_s s_ˈɜː_k_əl]\
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A polygonal anastomosis at the base of the brain formed by the internal carotid (CAROTID ARTERY, INTERNAL), proximal parts of the anterior, middle, and posterior cerebral arteries (ANTERIOR CEREBRAL ARTERY, MIDDLE CEREBRAL ARTERY, POSTERIOR CEREBRAL ARTERY), the anterior communicating artery and the posterior communicating arteries.
By DataStellar Co., Ltd
Word of the day
hydromorphic
- [Greek] Structurally adapted to an aquatic environment, as organs of water plants.