Digestion

Chapter 3 Nutrition

Chemical Digestion - Mouth

Amylase Ptylin

Mechanical Digestion - Mouth

Chewing 

Food Bolus 

The chewed up food

Peristalsis

Pushing the food and liquid down the esophagus to the stomach

Esophagus

Food tube. No digestion occurs here

Cardiac/Esophageal Sphincter

Stomach

Fundus

Body 

The main part of the stomach

HCl Hydrochloric Acid

Acid that is released into your stomach, breaks down everything (fats, proteins, carbs), Activates Pepsin

Rennin 

Before babies form pepsin, they have rennin which breaks down the milk proteins and fats 

Gastric Lipase 

Breaks down fats in the stomach

Intrinsic Factor

Helps absorb B12

Pyloric Sphincter

Final Stage of Digestion - Duodenum

Pancreatic Protease

Excreted from the pancreas. Breaks down proteins and peptides

Pancreatic Lipase

Excreted from the pancreas. Breaks down fats and glycerol

Pancreatic Amylase 

Excreted from the pancreas. Breaks down starches

Bile

Gallbladder

Stores bile

Common Bile Duct

Pylorus

Jejunum/ileum

Villi 

Lacteal 

ileo-cecal valve 

cecum

appendix

Ascending Colon/Large intestine

Transverse Colon/Large intestine

Descending Colon/Transverse

Sigmoid Colon/Large intestine 

Rectum 

Anus