Describe the blood vessels and contribution of anastomoses that constitute the cerebral arterial circle (circle of Willis)
What will be an ideal response?
The cerebral arterial circle is made up of the anterior and posterior communicating arteries, the anterior and posterior cerebral arteries, and the internal carotid artery. Anastomoses serve a dual purpose: they help equalize pressure in the arteries of the brain and minimize changes in systemic arterial pressure. Second, anastomoses provide collateral circulation that allows blood to continue flowing to the brain even if blood flow in one of the brain's major arteries is disrupted.
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Each number above molecule B refers to a codon. If an RNA codon was UAG, what would the corresponding DNA codon be?
A)UAG B)AUC C)CTA D)ATC
Both aspirin and morphine are eliminated in the urine.
Answer the following statement true (T) or false (F)
The ________ muscle partitions the neck into the anterior and posterior triangles.
Fill in the blank(s) with the appropriate word(s).
Members of an aqua aerobics exercise class appreciate a property of their pool's contents. Which characteristic are they thankful for?
A) Water cools down slower than air. B) Water and air heat up at the same rate. C) Water and air cool down at the same rate. D) Water heats up faster than air.