Botulinum toxin exerts its lethal blow by blocking the release of what chemical compound?
A)calcium
B)serotonin
C)ACh
D)potassium
E)dopamine

Question

Botulinum toxin exerts its lethal blow by blocking the release of what chemical compound?
A)​calcium
B)serotonin
C)ACh
D)potassium
E)​dopamine

Quizplus · Accepted Answer

Botulinum toxin blocks the release of acetylcholine (ACh), a neurotransmitter involved in muscle contraction. This leads to paralysis of the affected muscles and, ultimately, respiratory failure in severe cases. Calcium, serotonin, potassium, and dopamine are not directly affected by botulinum toxin.

Botulinum Toxin Exerts Its Lethal Blow by Blocking the Release