Meaning of CIRCLE OF WILLIS
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 WordNet Dictionary |
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| | Definition: | |
[n] a ring of arteries at the base of the brain |
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| | See Also: | | arteria, artery, brain, encephalon | |
| Medical Dictionary |
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| | Definition: | | A ring of arteries deep in the brain interconnecting the pairs of internal carotidarteries and vertebral arteries to supply the brain with oxygen-rich blood. |
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