Botox Works by Blocking Nerve Communications and Typically Is Used

Multiple Choice

Botox works by blocking nerve communications and typically is used to target the muscles of the face to reduce wrinkling. However, some patients with excessive sweating (hyperhidrosis) have Botox injected into problem areas to reduce the amount of sweating. Why would this work?

A) Nerves that directly communicate with sweat glands and stimulate them to produce sweat are blocked.
B) The arrector pili muscle is blocked from receiving nerve signal and can't squeeze sweat from the glands.
C) Specialized muscles controlling the sweat glands are blocked from communication.
D) The Botox toxin directly paralyzes the sweat glands on contact.