NEET PG DENTAL EXAM

HEAD NECK

PHARYNX LARYNX 47

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Wavelike motion that propels food forward
A
Peristalsis
B
Contraction
C
Mechanical digestion
D
Churning
Explanation: 

Detailed explanation-1: -Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach.

Detailed explanation-2: -wave motion, propagation of disturbances-that is, deviations from a state of rest or equilibrium-from place to place in a regular and organized way. Most familiar are surface waves on water, but both sound and light travel as wavelike disturbances, and the motion of all subatomic particles exhibits wavelike properties.

Detailed explanation-3: -Peristalsis is the involuntary contraction and relaxation of longitudinal and circular muscles throughout the digestive tract, allowing for the propulsion of contents beginning in the pharynx and ending in the anus.

Detailed explanation-4: -A series of normal coordinated, rhythmic muscle contractions, that occurs automatically to move food through the digestive tract is called peristalsis.

There is 1 question to complete.