Post on 05-Aug-2020
Human Digestive System
Parts of Digestive System
Hormones (e.g.: Gastrin) & nerves control the process of digestion
Mouth
Oesophagus
Salivary glands
Stomach Small & large intestine
Pancreas
Liver
Gall bladder
Steps in DigestionBreakdown of food in mouth by teeth and enzymes in the saliva
Transfer of partially digested food through oesophagus
Further digestion in stomach by digestive juices
Complete digestion & absorption in small intestine
Absorption of water & waste generation in large intestine
Assimilation of absorbed food
Digestion
Process of converting complex molecules into simpler forms
Body can absorb simpler forms of food to generate energy
What
Why
Ingestion
Motility
Secretion
Digestion
Absorption
Egestion
Functions