The function of acetylcholinesterase is to
A. open voltage-gated sodium gates.
B. breakdown acetylcholine in the synapse.
C. produce an IPSP on the postsynaptic membrane.
D. metabolize norepinephrine.
B
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Following hemorrhage, reflexes are triggered that attempt to compensate for the blood loss. As a result of the blood loss and the reflex mechanisms, which of the following will be TRUE, compared to pre-hemorrhage values?
A. Both cardiac output and total peripheral resistance will be decreased. B. Hematocrit will be increased. C. Cardiac output will be decreased and total peripheral resistance will be increased. D. Both cardiac output and total peripheral resistance will be increased. E. Cardiac output will be increased and total peripheral resistance will be decreased.
Capillaries are also referred to as
a) exchange vessels. b) vasoconstrictors. c) vasodilators. d) pressure reservoirs. e) distributing vessels.
Atropine is sometimes used to dilate the pupil for an eye examination. Which receptor would atropine block?
A. Alpha 1 adrenergic receptor B. Nicotinic receptor C. Muscarinic receptor D. Alpha 2 adrenergic receptor E. Beta receptor
Which of the following is not a characteristic of childhood?
A) Developing a high degree of voluntary muscular control B) Establishing bowel control C) Becoming reproductively functional D) Secondary teeth replacing primary teeth