In peristalsis, what causes the food to move from one place to another?

Alternate action of muscles to change the diameter at one place; first enlarged and then reduced

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Different actions of different muscles

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Contraction of only circular muscles behind the food

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Alternate contraction of circular and longitudinal muscles

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D Alternate contraction of circular and longitudinal muscles
Peristalsis is the involuntary movements of the longitudinal and circular muscles, primarily in the digestive tract. In the esophagus, peristalsis movement is characterized by waves of alternate circular contraction and relaxation of the longitudinal smooth muscle of tube by which the contents are propelled forward. Medulla is responsible for the peristaltic movement of food.
Thus, the correct answer is option D.

Suggest Corrections

Similar questions

Q. Peristalsis is alternate and rhythmic contraction and relaxation of muscles in the ________ .

Q. Relaxation and contraction of muscles cause the bones to move.

Q. Assertion :Circular smooth muscles of iris contract when bright light falls on the eye. Reason: Pupil gets constricted by the contraction circular smooth muscles of iris.

Q. In T.S. Pheretima, the correct sequence of body wall layers from outer to inner side
(a) Circular muscles
(b) Parietal peritoneum
(c) Epidermis
(d) Cuticle
(e) Longitudinal muscles

A structure which has been moved by a muscle cannot return to its original position without the action of another muscle. Such muscles causing opposing movements are called __(antagonistic muscles/ smooth muscles).

Join BYJU'S Learning Program