Succinyl choline acts to block neuromuscular transmission by_______________?
Correct answer: A. Depolarizing the motor end plate of skeletal muscle
- A. Depolarizing the motor end plate of skeletal muscle
- B. Inhibiting the CNS
- C. Inhibiting cholinesterase
- D. Blocking the release of acetyl choline at the end plate
Explanation
Succinylcholine persistently activates nicotinic receptors at the motor end plate, causing depolarization followed by inability to generate further action potentials. It therefore produces a depolarizing neuromuscular block rather than preventing acetylcholine release.
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