HUMAN NUTRITION

NUTRITION

DIGESTIVE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Food moves through the esophagus and the rest of the digestive tract by waves of muscle contractions called
A
peristalsis
B
homeostasis
C
sonar waves
D
tsunami waves
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: -Esophageal peristalsis consists of sequential contraction of the circular muscles of the muscularis propria, which is largely mediated by acetylcholine. This sequential contraction serves to occlude the esophageal lumen and push the bolus aborally.

Detailed explanation-3: -Beginning in the esophagus, food moves smoothly through your entire digestive tract by a process called peristalsis, a coordinated, rhythmic wave of muscular contraction that travels in a single direction. Peristalsis works independently of gravity.

Detailed explanation-4: -Types of esophageal peristalsis In the oesophagus, three types of peristalsis occurs as follows: Primary esophageal peristalsis. Secondary esophageal peristalsis. Tertiary esophageal peristalsis.

There is 1 question to complete.