Christina was bitten by a black widow spider while retrieving ...

[CharlieWard]

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 acetylcholine (ACh) at the neuromuscular junction.
 b. competes with acetylcholine (ACh) at nicotinic receptor sites.
 c. promotes greater than normal release of acetylcholine (ACh) at the neuromuscular junction.
  d. interferes with GABA inhibition of the motor system by blocking receptors.

Question 2

Black widow spider venom acts as a(n)
 
  a. acetylcholine agonist.
 b. acetylcholine antagonist.
  c. dopamine agonist.
 d. dopamine antagonist.

[peter]

Answer to Question 1

c

Answer to Question 2

a

[CharlieWard]

Wow, this really help

[Animal_Goddess]

Gracias!