There are many arterial loops within the circulatory system, what function does this serve?
Answer: Provide alternate routes for blood flow
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When small blood vessels are damaged, loss of blood is prevented by
a. platelet aggregation. b. vasoconstriction of these vessels. c. formation of a platelet plug. d. all of these answers. e. none of these answers.
Spinal reflexes bring about sympathetically induced vasodilation of arterioles during sexual arousal
Indicate whether the statement is true or false
The membrane of a contractile cardiac muscle cell contains
A. calcium pumps that move calcium out of the cell. B. calcium pumps that open and allow calcium to diffuse down its concentration gradient to reach equilibrium. C. no calcium pumps. D. calcium pumps that move calcium into the cell.
What type of neural circuit is best for producing a prolonged output?
A. A reverberating circuit B. A converging circuit C. An autonomic pool D. A diverging circuit E. A presynaptic pool