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What are the major functions of the Circle of Willis?


NOTE: Even though this information was covered in Murray's discussion of the cardiovascular system, you should make sure you have a strong understanding of this concept in order to do well on your third test in PsTL 1135.


One major function of the circle of Willis or cerebral arterial circle is to provide pathways for blood vessels to carry oxygen throughout the brain.

It keeps the blood flowing from the brain to the rest of the body.