______ postganglionic sympathetic neurons secrete ________ onto their target cells.

______ postganglionic sympathetic neurons secrete ________ onto their target cells.

______ postganglionic sympathetic neurons secrete ________ onto their target cells.




A) All, norepinephrine
B) Most, norepinephrine
C) All, acetylcholine
D) Most, acetylcholine



Answer: B


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