Which membrane covers the surface of the heart?
A. Parietal pericardium
B. Visceral pleura
C. Visceral peritoneum
D. Visceral pericardium
Answer: D
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During saltatory conduction, action potentials jump from
A) one astrocyte to another. B) an axon to a dendrite. C) one internode to another. D) one node of Ranvier to another. E) one microglia cell to another.
This figure shows the muscles of facial expression. What muscle does number 8 indicate?
A. Mentalis B. Sternocleidomastoid C. Risorius D. Depressor labii inferioris E. Levator labii superioris
The most common blood type is
A) type A. B) type B. C) type AB. D) type O. E) type AO.
During female sexual arousal, parasympathetic activation leads to engorgement of the
A) mons pubis. B) clitoris and vestibular bulbs. C) vagina. D) cervix. E) vaginal fornix.