THORAX ABDOMEN AND PELVIS

MEDICAL

RECTUM AND ANUS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Involuntary waves of muscle contraction that keep food moving along in one direction through the digestive system.
A
villi
B
alveoli
C
peristalsis
D
chyme
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: -After you swallow, esophagus muscles contract (flex and relax). When the esophagus works as it should, this wave of coordinated contractions moves food or liquid down to your stomach. This series of contractions is called peristalsis. If you have esophageal spasms, these contractions don’t work correctly.

Detailed explanation-3: -Smooth muscle It is the weakest type of muscle but has an essential role in moving food along the digestive tract and maintaining blood circulation through the blood vessels. Smooth muscle acts involuntarily and cannot be consciously controlled.

There is 1 question to complete.