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The Digestive System - Coggle Diagram
The Digestive System
Stages of nutrition
Absorption
Assimilation
Digestion
Egestion
Ingestion
Oesophagus
peristalsis - muscular contractions
Oesophagus - food pipe
Food pushed down from mouth by peristalsis
Stomach
Hydrochloric acid - chemically digests food
Churning - physically breaks down food
Bag that holds food after oesophagus
Types
Mechanical - enzymes
Physical - chewing
Mouth
Teeth physically digest
Saliva chemically digests food
Liver
Produces bile to digest fat in small intestine
Largest internal organ
Small Intestine
Produces enzymes
Nutrients absorbed into blood through villi
Pancreas - produces enzymes
Large Intestine - where water is absorbed into blood
Rectum - where faeces is stored
Anus - where faeces leave the body