_______________ is a series of wavelike contractions of circular and longitudinal layers of smooth muscle that push food from one end of the digestive tract to the other.
A)Peristalsis
B)Locomotion
C)Negative feedback inhibition
D)A graded contraction

Question

Quizplus · Accepted Answer

Peristalsis is the rhythmic contraction and relaxation of the smooth muscles in the walls of the digestive tract, which helps in pushing the food forward through the system. It is a coordinated movement of the circular and longitudinal muscles which acts as a wave-like motion to propel the food in one direction. Thus, option A is the correct answer. Option B is incorrect as Locomotion refers to the movement of the entire organism from one place to another. Option C and D are also incorrect as they do not relate to the given description of peristalsis.

_______________ Is a Series of Wavelike Contractions of Circular and Longitudinal