Explain the human digestive system
Answers
Human digestive system, the system used in the human body for the process of digestion. The human digestive system consists primarily of the digestive tract, or the series of structures and organs through which food and liquids pass during their processing into forms absorbable into the bloodstream.
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Explanation:
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༊*· Explain in detail about human digestive system.
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❥ The food we eat cannot be digested by our body directly.
❥ It needs to be broken down into substances which can be easily absorbed by the body.
❥ The process of breaking down the food into simple form is called digestion.
1.
Digestion begins in the mouth. Our teeth chew and break the food into smaller pieces. Saliva makes the food softer and easy to swallow.
2.
The soft chewed food is passed down the down the food pipe to the stomach.
3.
Digestive juice are present in the stomach. These help to digest food while stomach muscles churn it well.
4.
It produces juices that play an important role in the digestion of food.
5.
It is a long coiled tube. The food passed from stomach is further digested here.The digested food is in the liquid form and the nutrients are absorbed into the blood from the walls of this organ. The blood carries these nutrients to various parts of the body.
6.
Fibres cannot be absorbed by the body. They are passed as undigested food into the large intestine. Its blood vessels absorb excess water, store and throw out the undigested semi-solid waste from the body through the anus.