Lecture 3: Digestion, Absorption, & Transport
Friedman School of Nutrition Science and Policy
Foundations of Nutrition Science, Fall 2012
LECTURE #3: DIGESTION, ABSORPTION, & TRANSPORT
- List the parts of the gastrointestinal (digestive) tract in order from the mouth to the colon.
- List the organs that assist digestion, but are not part of the digestive tract. Describe the function of each.
- Compare the terms mechanical digestion and chemical digestion, and point out where these processes occur along the digestive tract.
- List the secretions that break down carbohydrates during digestion.
- List the secretions that break down fats during digestion.
- List the secretions that break down proteins during digestion.
- Describe the 4 ways in which nutrients can be absorbed into the cells lining the GI tract following their digestion.
- Explain the role of the circulatory (blood) system vs. the lymphatic system in the transport of nutrients around the body following their absorption.
- Identify the 4 major hormones that control digestion and absorption.
- Describe the common digestive tract problems in humans.
- Whitney & Rolfes, Chapter 3, Digestion, Absorption, and Transport; Highlight 3
- Transport of Nutrients (handout)