Question 07
The velocity of action potential propagation:
a) is independent of an axon"s diameter.
b) depends on the thickness of the myelin around the axon.
c) will be unaffected if the axon becomes demyelinated.
d) is fastest in unmyelinated axons.
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SECTION ONE
Question 01
Regarding the sympathetic division of the autonomic nervous system:
a) acetylcholine is secreted by some sympathetic postganglionic fibers.
b) most sympathetic preganglionic fibers secrete norepinephrine (noradrenaline).
c) sympath
Question 14
Regarding the hormones of the adrenal gland.
a) The adrenal gland secretes both peptide and steroid hormones.
b) Aldosterone plays a role in the regulation of plasma calcium.
c) The secretion of cortisol lowers plasma glucose levels.
d) The ad
Question 19. Concerning the mechanics of ventilation:
a) The change in the volume of the lungs with pressure is a measure of
their compliance.
b) The total compliance of the chest is determined solely by the compliance of the
lungs.
c) The recoil of the l
