Explain the process of digestion in humans.
Answers
Answer:
1) When the food is entered into the mouth. we chew the food through salivary gland.
2) food reaches the oesophagus.
3) through oesophagus the food reaches the stomach.
4) In the stomach several juices and enzymes are released which help in further breakdown of complex food substances.
5) then the food reaches the small intestine when assimilation takes place.
6) then the assimilated food reaches the large intestine where in salts and water are absorbed.
7) then the waste is stored in rectum.
8) then the waste is thrown out by anus in the form of utine and faeces at regular intervals.
Explanation:
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Humans take food through mouth, digest the food and finally the undigested food are removed from the body. The food passes from oral cavity and finally the undigested food is defecated through anus.
It is a complex process involving following steps:
- Ingestion
Ingestion refers to the intake of food.
- Digestion
Digestion refers to the breakdown of ingested food into simpler forms.
- Absorption
Absorption refers to the process in which digested food in absorbed in to the body fluids,
Small intestine plays a major role in Absorption.
- Assimilation
Assimilation refers to the process in which absorbed food is transported to different cells of the body.
- Excretion
Excretion refers to the process of removal of undigested food from the body.
The canal can be divided into various compartments:
buccal cavity, esophagus, stomach, small Intestine, large intestine, rectum and anus.
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