Of these nerve fibers, which conduct action potentials the SLOWEST?
A) myelinated nerve fibers
B) large-diameter fibers
C) type B fibers
D) type C fibers
Answer: D) type C fibers
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The weak interactions between atoms that keep atoms near each other but don't tightly bind them together are called
A) ionic bonds. B) van der Waals forces and ionic bonds. C) van der Waals forces. D) hydrogen bonds. E) hydrogen bonds and van der Waals forces.
An anti-emetic is a drug that:
A) counteracts diarrhea B) counteracts vomiting C) induces diarrhea D) induces vomiting E) is the same as an antitussive
Salt in water is measured in __________________ to determine the salinity content
Fill in the blank(s) with correct word
A sphincter is a
A. thickening of the longitudinal layer of the muscularis that propels materials through the GI tract. B. circle of adventitia that anchors the GI tract to neighboring structures. C. thickening of the circular layer of the muscularis that controls movement of materials through the GI tract. D. fold of the mucosa of the GI tract that increases the total surface area for absorption of nutrients.