What structures control blood flow into capillary beds?
A. Precapillary sphincters
B. Arteriovenous shunt
C. Semilunar valve
D. Adhesion junctions
Answer: A
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Which of the following serve to increase the surface area of a cell for absorption and/or secretion?
A. Microvilli B. Cilia and microvilli C. Cilia and flagella D. Flagella E. Cilia
Which best describes temporal summation?
A. It only refers to addition of EPSPs. B. A synapse is stimulated a second time before the effect of a first stimulus at the synapse has terminated. C. The size of an EPSP depends on the size of the stimulus. D. It always brings a postsynaptic cell to threshold. E. Two synapses on different regions of a cell are stimulated at the same time.
Which muscle allows you to roll your eyes upward, as in a look of disgust?
A. Superior oblique B. Inferior oblique C. Inferior rectus D. Superior rectus E. Lateral rectus
Treatment of Giardia lamblia infections should include a. metronidazole. b. praziquantel
c. epsiprantel. d. ivermectin.