circle of willis
Definition
- Noun:
- A ring of arteries at the base of the brain: The "circle of Willis" is a circulatory anastomosis, a ring-like structure of arteries located at the base of the brain. It connects the major arteries supplying blood to the brain, providing redundancy and collateral blood flow.
Examples of Usage
- Noun:
- The circle of Willis is a critical structure for cerebral circulation.
- An aneurysm was detected in the patient's circle of Willis.
- The anatomy textbook includes a detailed diagram of the circle of Willis.
Advanced Usage
- "Integrity of the circle of Willis": Refers to the completeness and proper function of this arterial circle, which is important for maintaining adequate blood flow to all brain regions.
- The patient's stroke was less severe due to the integrity of their circle of Willis.
Variants and Related Words
- Cerebral arterial circle: A formal synonym for the circle of Willis.
- Willis' circle: An alternative naming, using the possessive form.
- Anterior communicating artery, Posterior communicating artery: These are specific, named vessels that are components of the circle of Willis.
Synonyms
- Cerebral arterial circle
- Circulus arteriosus cerebri (Latin anatomical term)
Related Phrases
- Collateral circulation via the circle of Willis: Describes the alternate blood flow pathways this structure provides.
- Collateral circulation via the circle of Willis helped compensate for the blocked artery.
Related Idioms
(This is a specific anatomical term; common idioms are not typically associated with it.)
Noun
-
a ring of arteries at the base of the brain
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