Updated On May 15, 2024

By SaraNextGen

What is Digestion Of Food and What is the the process of Digestion ?

Digestive system is an organ system formed of a set of organs that work together in the process of digestion.

1) Mouth : 

Digestion starts in the mouth . Teeth chew food and break it into smaller pieces . There are three pairs of salivary glands in our mouth . They release a digestive juice , called saliva . The saliva mixes well with the food while chewing . It makes the food soft to swallow . Saliva changes complex carbohydrates into simple sugars . A lump of soft , semi - digested food swallowed is called bolus . 

2) Food pipe : 

After mouth , comes the food pipe through which the bolus passes into the stomach .

3) Stomach : 

The stomach is a hollow , muscular bag . The food is churned and mixed with the digestive juices . The digestive juices break down the protein into simpler forms . The food remains in stomach for up to four hours . From the stomach , the food is pushed into a long , coiled tube called the small intestine . 

4) Small intestine : 

It is the longest part of the digestive system . Intestinal juices mix with the food and break it down further . Here , juices come from the intestinal wall , liver , pancreas and gall bladder . These juices complete the digestion of the food that makes it ready to be absorbed . Intestinal wall has hair - like outgrowths which are richly supplied with blood vessels . Most nutrients are absorbed into the blood along with water . The blood carries the absorbed nutrients to various parts of the body .

5) Large intestine : 

The undigested food pass into a wider tube called the large intestine . The remaining water is absorbed through the walls of the large intestine into the blood vessels . 

6) Rectum : 

The undigested semi - solid waste accumulates inside the rectum . Then it passes out through the anus as excreta .

What is Healthy Eating ? 

To be healthy , we need to take special care in the following ways : 

1 ) Chew food more for better digestion.

2 ) Eat a balanced diet.

3 ) Drink plenty of water . 

4 ) Try to have more freshly cooked food and less of preserved food . 

5 ) Avoid junk foods . They may be tasty but they are unhealthy . They do not contain all the nutrients . 

6 ) Avoid fried food . It has excess oil which can make us obese .

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