The Small Intestine Flashcards
1
Q
What is the name of the 3 parts of the small intestine?
A
Duodenum, Jejnum and Ileum
2
Q
What does the duodenum do?
A
Digestion using pancreatic enzymes
3
Q
What does the Jejunum do?
A
Absorption (vili)
4
Q
What does the Ileum do?
A
Further absorption (including B12 vitamins and fats) also has vili
5
Q
What does the vili do?
A
It allows the body to absorb nutrients from the food into the blood
6
Q
Where are the 3 main enzymes made?
A
The pancreas
7
Q
What are the adaptions of villi?
A
Villi have a wall only one cell thick so the nutrients only have a short distance to diffuse into the blood. Villi have capillaries inside them for a good blood supply to allow for quick diffusion into the blood. Villi have a large surface area to allow quicker diffusion.
