Question

how digestion occur in human body?​

Answer 1

Answer:

The digestion of food in human body occurs in following ways -

1. Ingestion - The intake of food through mouth and thoroughly chewing it before swallowing. Then the food travels down from mouth to stomach through oesophagus (food pipe).
2. Digestion - The process of digestion begins from stomach. Different food substances are separated and broke down by different digestive enzymes released by digestive glands like pancreas produces insulin which breakes down sugar and liver and gall bladder produce bile to break down fats in food. Then food is moved to small intestine where remaing substances of food are broke down.
3. Absorption- The absorption of nutrientsand water occurs in further part of small intestine where finger like structures called villi absorbs them into blood and theyare transported to other organs. More water and salts are absorbed in large intestine.
4. Excretion - The removal of waste faeces (food materlas) through anus is known as excretion.

Answer 2

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