Christina Was Bitten by a Black Widow Spider While Retrieving

 Christina was bitten by a black widow spider while retrieving some wood for her fireplace. Her abdominal muscles began to contract painfully, which was to be expected because black widow spider venom

A) inhibits release of ACh at the neuromuscular junction.
B) competes with ACh at nicotinic receptor sites.
C) promotes greater than normal release of ACh at the neuromuscular junction.
D) interferes with GABA inhibition of the motor system by blocking receptors.

Correct Answer:

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