Description: Digestive system and its functions
Human Digestive System
Gallbladder- Small pouch located below the liver
- Stores the bile
Esophagus- Carries food to the stomach
- Muscular tube extending from pharynx to stomach
Rectum- Receives stool from colon
- Holds stool until evacuation
Stomach- Mixes and grinds the food
- Secretes acid and powerful enzymes that help in digesting food
Pancreas- Chief factory of digestive enzymes
Large Intestine- Absorbs water and salt from material that is not digested as food
Small Intestine- Carries out most of the digestion process
- Walls of the small intestine produces digestive juices
- Regulates most chemicals in the blood
- Excretes bile juice
- All blood from stomach and intestine passes through the Liver
Food
- Energy
Mouth
- Digestion starts in the mouth
- Salivary glands in the mouth secrete saliva
- Saliva has enzymes that help breakdown food
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