Digestive System

It is the body system responsible for extracting nutrients and other useful substances from food.

The digestive tract is also called __________.

What are the two types of digestion?

In this type of digestion, there is physical breakdown of food into smaller parts.

This type of digestion happens in the mouth through the action of the teeth, gums, and tongue.

This type of digestion also happens to some extent during churning in the stomach.

It is the series of wavelike movement of muscles.

This type of digestion starts in the mouth through the action of the enzyme present in the saliva.

This type of digestion also occurs in the stomach and small intestine through the action of acids and enzymes.

Digestion begins in the __________ where the food is mechanically digested.