Structure of digestive system Flashcards
What are the 2 functions of the digestive system?
- Breaks down complex food substances.
- Provides very large surface area for maximum absorption.
Structure of digestion system?
Mouth-Begins the digestion of carbohydrates
Stomach-Begins the digestion of protein; small molecules such as alcohol absorbed
Small intestine - Duodenum Continues the digestion of carbohydrate and protein; begins the digestion of lipids
Small intestine - Ileum Completes the digestion of carbohydrates and proteins into single sugars and amino acids; absorption of single sugars, amino acids and fatty acids and glycerol
Large intestine Absorption of water; egestion of undigested food
Structure of absorption in the Ileum?
The surface of small intestines has villi and it also has a mircovilli on top of that layer of villi.And also has many capillaries branching off into the blood stream from that villi.
