Question

smooth muscles underlying the entire digestive tract undergo ______, which are rhythmic waves of contraction.
o transduction
o saltatory conduction
o peristalsis
o fibrillation

Explanation:

Peristalsis is the rhythmic wave - like muscle contractions that move food through the digestive tract. Transduction is related to signal conversion, saltatory conduction is for nerve impulse transmission in myelinated axons, and fibrillation is an irregular muscle contraction usually associated with the heart.

Answer:

C. peristalsis