Villi in the Small Intestine Help with Absorption Flashcards
1
Q
What is the small intestine adapted for?
A
Absorption of food
2
Q
What happens because it’s very long?
A
There’s time to breakdown and absorb all the food before it reaches the end
3
Q
What makes it good for absorption?
A
A really big surface area
4
Q
What is all over the walls of the small intestine?
A
Covered in millions and millions of tiny little projections called villi
5
Q
What does each cell on the surface of a villus also have?
A
It’s own microvilli
6
Q
What is microvilli?
A
Little projections that increase the surface area even more
7
Q
How do villi assist quick absorption?
A
They have a single permeable layer of surface cells and a very good blood supp,y
