Daria has decided to get the cosmetic injection of Botox to smooth wrinkles between her eyebrows. Before she goes to visit her doctor, she researches Botox on the internet and learns that it's a mild form of the botulism toxin, which paralyzes facial muscles by blocking the action of
A) serotonin.
B) acetylcholine.
C) dopamine.
D) norepinephrine.

Question

Quizplus · Accepted Answer

Botox works by blocking the action of acetylcholine, a neurotransmitter that stimulates muscle contraction. By inhibiting acetylcholine release, Botox results in the temporary paralysis of targeted muscles, which smooths out wrinkles and fine lines.

Daria Has Decided to Get the Cosmetic Injection of Botox