Which of the following substances is absorbed by the stomach?
a. glucose.
b. caffeine.
c. aspirin.
d. amino acids.
e. fatty acids.
C
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The superior surface of the talus articulating with the tibia is the ____________________.
Fill in the blank(s) with the appropriate word(s).
What causes systole -the contraction of cardiac ventricular cells?
a. action potentials from motor neuronsb.action potentials from sympathetic neurons c. release of neurotransmitter from autorhythmic cardiac cells onto contractile cells d. spontaneous depolarization of autorhythmic cells spreads to contractile cell membranes
Which hormone is not produced by the hypothalamus?
A. GnRH B. GHRH C. TSH D. CRH
If precapillary sphincters relax, local blood flow in the capillary bed ________; if this occurs in several capillary beds at the same time, and no other circulatory changes occur, then systemic blood pressure ________.
A. increases; decreases B. increases; increases C. decreases; decreases D. decreases; increases