Science Class 6 | Unit 04 |Human Digestive System|SNC New Syllabus 2022lin Urdu|kpkbook|
Автор: NUK Education
Загружено: 2025-07-05
Просмотров: 258
Описание:
The human digestive system is a group of organs that work together to break down food, absorb nutrients, and eliminate waste. It converts the food we eat into energy and essential nutrients that the body needs to functions.
Main Parts and Functions:
1. Mouth – Digestion begins here. Teeth chew food and saliva (contains enzymes) starts breaking down carbohydrates.
2. Esophagus – A muscular tube that pushes food from the mouth to the stomach.
3. Stomach – Produces acid and enzymes that digest proteins. Food is mixed and turned into a semi-liquid called chyme.
4. Small Intestine – Main site of digestion and absorption. Enzymes from the pancreas and bile from the liver help digest food. Nutrients are absorbed into the blood.
5. Liver – Produces bile, which helps digest fats.
6. Pancreas – Produces enzymes that help digest proteins, carbohydrates, and fats.
7. Large Intestine (Colon) – Absorbs water and forms solid waste (feces).
8. Rectum and Anus – Store and remove waste from the body.
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