Human Digestive System


 
 
Concept Explanation
 

Human Digestive System

The digestive system of humans is well developed. It consists of the gut or alimentary canal, along with many associated digestive glands. The alimentary canal is divided into mouth, esophagus, stomach, small intestine and large intestine. Digestion is a catabolic process, in which complex and large components of food are broken down into their respective simpler substances with the help of various enzymes. The entire system, which performs this process of digestion is known as digestive system.

Mouth  It is consist of different parts like lips , palate teeth, tongue and gums. It is the starting point of digestive system where food is chewed and digested.

Esophagus  : It is also called as food pipe. By peristaltic movement food enters the stomach.

Stomach It is a sac like structure. It receives food from esophagus.

Small IntestineIt is the longest part of our digestive system in which maximum digestion take place.

Large IntestineIt is more wider than that of small intestine. In this part absorption of water take place.

Rectum It is the swollen end part of the alimentary canal. It store waste material which is excreted through anus.

Anus Anus is the end point of alimentary canal. Waste material or undigested food excrete from this opening.

                               

Sample Questions
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Question : 1

In the given picture, the part shown as 'X' is

Right Option : C
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Question : 2

Which of the following are correct ?

(a) In humans anus is the end point of alimentary canal.

(b) In human beings mouth consist of different parts like lips, palate teeth, tongue and gums.

(c) In human beings the large Intestine is more narrower than that of small intestine.

Right Option : A
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Question : 3

Which of the following are correct ?

(a) The entire system of human beings, which performs this process of digestion is known as excretory system.

(b) In human beings mouth is the starting point of digestive system where food is chewed and digested.

(c) The stomach of human beings is a sac like structure which receives food from esophagus.

Right Option : B
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Explanation
 
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