Which structure sends motor nerve signals to the deep back muscles and receives sensory nerve signals from the skin of the back?
a. posterior root
b. posterior ramus
c. anterior root
d. anterior ramus
b. posterior ramus
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A patient who has itching in the ears due to a buildup of earwax could be said to have too much ________.
A. cerumen B. fluid C. eustachian D. cochlea
This figure shows an intestinal villus. What is the structure indicated by the number 1?
A. Intestinal artery B. Lacteal C. Microvillus D. Intestinal vein E. Flagellum
________ are antibodies found in body fluids.
Fill in the blank(s) with the appropriate word(s).
How is the concentration of a hormone in plasma determined?
A. only by its rate of secretion B. by the number of its target cells in the body C. only by its rate of synthesis D. by its secretion and clearance rates, and whether or not it binds to carriers and/or other plasma proteins E. only by the rate of its degradation by the liver and kidneys