What is the innermost layer of a artery wall called?
a. endothelium
b. tunica media
c. tunica externa
d. vasa vasorum
Answer: a. endothelium
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__________ is a hormone that promotes bone resorption by the osteoclasts.
Fill in the blank(s) with the appropriate word(s).
If the permeability of a resting axon to sodium ion increases,
A) the membrane potential will repolarize. B) the membrane potential will hyperpolarize. C) inward movement of sodium ion will increase. D) outward movement of sodium ion will decrease. E) inward movement of sodium will increase and the membrane will depolarize.
Which layer is not found in the wall of the ureter?
A. Adventitia B. Muscularis C. Mucosa D. Submucosa
The membrane proteins that bind to a ligand and act in the body's chemical signaling system are ________.
Fill in the blank(s) with the appropriate word(s).