Question: What are the three sections of the small intestine and what role does each section play in digestion or absorption?

Answer:

Question: What is the pH within the small intestine and how is this pH maintained?

Answer: The pH gradually increases from about 6-7.5 as you go farther down the intestine. The pH is maintained by the sodium bicarbonate.

Question: Where do bile and pancreatic enzymes enter the small intestine?

Answer: Duodenum

Question: How does food move through the intestines?

Answer: The smooth muscles of the small intestine contract and push the food downward. These contractions are called peristaltic movement.

Question: What enzymes act inside the small intestine and what are the functions of these enzymes?

Answer: