Small Intestine

Question 1

Describe the small intestine.

Answer 1

• extends from the pyloric orifice to the ileocecal junction

- about 7 m in length

Question 2

What is the function of the small intestine? Compare it to the function of the large intestine.

Answer 2

• absorption of nutrients occurs almost entirely within the small intestine
• small intestine also absorbs lots of water (~70%)
• the large intestine mostly absorbs water, finishes the job of the small intestine

Question 3

What are the parts of the small intestine?

Answer 3

• duodenum
• jejunum
• ileum