circle of Willis necklace | silver gold_plated or other anatomical differences alter

or other anatomical differences alter the ring's completeness

The basilar membrane is stiffest at the base (sensitive to high frequencies) and most compliant at the apex (sensitive to low frequencies)

The same way one asks for a hoover or a xerox

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circle of Willis necklace | silver gold_plated or other anatomical differences alterCircle of Willis necklace sterling silver If you have trained on stroke protocols, you know the circle of Willis before you know most other brain anatomy. The arterial ring at the base of the brain that provides collateral perfusion when one vessel is blocked. Thomas Willis described it in 1664, and it remains the key to understanding why some strokes are catastrophic and others are survivable. The Science Behind the Circle of Willis The circle of