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Human Digestive
System
Made By :
Arvind
Structure of human Small intestine
25 cm
2.5 m
3.5 m
Structure of human Liver
Part of
Digestive
System
Gland
Digestive
Juice
Enzyme
Function
Mouth
Salivary
Saliva
Ptyalin
Starch to Sugar
(Salivary
Amylase)
Stomach
Gastric
Gastric
Pepsin
Parietal
HCl
Proteins to
Polypeptides
Kill germs &
activates pepsin
Duodenum
Pancreas
Liver
Small
Intestine
Pancreatic
Bile
krypts of
Succus
Lieberkuhn entericus
Trypsin
Protein to amino
acids
Amylase
Starch to Sugar
Lipase
Fats to fatty acids
& glycerol
No
Enzyme
Provides alkaline
medium
Emulsify fat
Maltase
Sucrase
Finally breakdown
sugar to glucose