What is the purpose of motor nerve varicosities as they relate to smooth muscle?
A) They link the thin filaments to the inside of the sarcolemma in smooth muscle.
B) They prevent single-unit smooth muscle cells from pulling apart.
C) They enable each cardiac myocyte to directly stimulate its neighbors.
D) They reabsorb the decomposition products of acetylcholine after acetylcholinesterase breaks it down.
E) They release neurotransmitter onto smooth muscle cells.
E
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