Which structure uses smooth muscle contractions to function?
A) Heart
B) Tongue
C) Eyelid
D) Knee
E) Bladder

Question

Quizplus · Accepted Answer

The bladder functions with the help of smooth muscle contractions to expel urine. The heart's contractions are not only smooth muscle, but also cardiac muscle. The tongue uses skeletal muscle for movement, the eyelid uses skeletal and smooth muscle, and the knee does not involve smooth muscle contractions at all.

Which Structure Uses Smooth Muscle Contractions to Function