Question

all of the following are functions of smooth muscles except: a. heartbeat b. breathing c. perspiration d. digestion please select the best answer from the choices provided.
a
b
c
d

Explanation:

Smooth muscles are involuntary and non - striated. Heartbeat is controlled by cardiac muscle (not smooth muscle). Breathing involves smooth muscles in the airways, perspiration involves smooth muscles in sweat glands, and digestion involves smooth muscles in the digestive tract. So the function not of smooth muscle is heartbeat.

Answer:

A. heartbeat