Acetylcholine
a. is released from an axon.
b. destroys acetylcholinesterase.
c. is blocked by sodium.
d. both (a) and (b) above.
e. all of these answers.
A
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As blood travels through the venous system toward the heart, why do the veins become larger in diameter?
A) The transition causes the resistance to increase further so that the flow rate of blood increases. B) The transition causes the resistance to decrease further so that the flow rate of blood increases. C) The transition causes the resistance to decrease further so that the flow rate of blood decreases. D) The transition causes the resistance to increase further so that the flow rate of blood decreases. E) The transition reflects no change in the resistance, but causes the flow rate of blood to increase.
What is the function of the articulatory system?
What will be an ideal response?
Regions of skin supplied by a spinal nerve for somatic sensation are known as:
A) the ABCDE rule. B) lines of cleavage. C) the rule of nines. D) dermatomes.
Which is not an effector innervated by the autonomic nervous system?
A. Cardiac muscle B. Glands C. Smooth muscle D. Skeletal muscle E. None of the choices is correct.