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Digestive System Arpanbir Singh 2nd - Coggle Diagram
Digestive System
Arpanbir Singh
2nd
Major functions
mechanical breakdown
chemical digestion
propulsion
ingestion
absorption
elimination
Layers of GI tract
mucosa-innermost layer.It is made up of 3 layers
lamina propria
muscularis mucosae
epithelium
submucosa-it is dense ,irregular layer of connective tisue
serosa-It consists of a secretory epithelial layer and a thin connective layer that reduces friction.
muscle layer-It is responsible for the segmental contraction and peristaltic movements.
Layers of stomach
Mucosa. This is the first and innermost layer or lining. ...
Submucosa. This second layer supports the mucosa. ...
Muscularis. The third layer is made of thick muscles. ...
Subserosa. This layer contains supporting tissues for the serosa.
Serosa. This is the last and outermost layer.
Digestive enzymes
mouth
amylase - break down starch
Stomach
pepsin - Breaks down proteins
Lipase - Breaks down fat
Pancers
Trypsin - Digest protein
Amylase - Digestion of carbohydrates
lipase - breakdown fat
Major organs of the digestive system
Hollow Organs
stomach
large intestine
cecum
colon
appendix
rectum
esophagus
mouth
small intestine
jejunum
ileum
Duodenum
anus
Solid Organs
liver
gallbladder
pancreas
Disorders of the digestive system
Gastroesophageal Reflux Disease
Constipation
Irritable Bowel Syndrome
Inflammatory Bowel Disease
Hemorrhoids