Small Intestine

About how long is the small intestine?

7meters

What are the finger like projections that increase surface area in the lining of small intestine wall?

Villi

What are villis covered by that increase the surface area for absorption?

Microvilli

What do the nutrients from food pass into through the small intestine?

Blood Stream

The small intestine absorbs 80%of ingested matter including..

1. Vitamins

2. Minerals

3. Carbohydrates

4. Protein

5. Lipids

The small intestine secretes digestive enzymes including…

1. Peptidases: Amino, Tri, Di

2. Sucrases

3. Maltase

4. Lactase

5. Saccharidases: Di, tri

6. Lipase

7. Nucleases

The small intestine extends from…

Pyloric Sphincter to Ileocecal valve

What is duodenum?

The very start of the small intestine which connects it to the stomach

What is the jejenum?

First half of small instestine

What is Ileum?

Second half of small intestine

What is segmentation?

Contraction of muscles in the small intestine that mixes chyme