ANATOMY

GENERAL ANATOMY

DIGESTIVE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Food is pushed into your stomach by ____
A
Muscular contractions called peristalsis
B
Digestive juices
C
Voluntary control
D
Gravity
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: -A series of normal coordinated, rhythmic muscle contractions, that occurs automatically to move food through the digestive tract is called peristalsis.

Detailed explanation-3: -Listen to pronunciation. (payr-ih-STAL-sis) The rippling motion of muscles in the intestine or other tubular organs characterized by the alternate contraction and relaxation of the muscles that propel the contents onward.

Detailed explanation-4: -Peristalsis: The movement of food in the alimentary canal is mediated by the process called peristalsis. It is a type of involuntary muscular movement that occurs in the digestive system. It begins with the swallowing of food in the mouth and propulsion throughout the gastrointestinal tract.

Detailed explanation-5: -Two types of movements take place in the gastrointestinal (GI) tract; peristalsis and segmentation. 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.

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