Plasma cells have a life span of about _________, which is mainly spent in the _________
A.
5 days; blood
B.
5 days; lymph nodes
C.
130 days; blood
D.
130 days; lymph nodes
B
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The lipid in oil glands is released through which type of secretion?
A) eccrine B) apocrine C) merocrine D) endocrine E) holocrine
Which of the following is not a factor that binds cells together?
A) glycoproteins in the glycocalyx B) glycolipids in the glycocalyx C) wavy contours of the membranes of adjacent cells D) special membrane junctions
The working distance for a 10× objective lens is ________.
Fill in the blank(s) with the appropriate word(s).
In cardiac muscle, the fast depolarization phase of the action potential is the result of ________ membrane permeability to ________ ions
A) increased; sodium B) increased; potassium C) decreased; calcium D) decreased; sodium E) increased; chloride