Physiology 2130 Lecture Notes - Lecture 15: Lactose Intolerance, Digestion, Common Bile Duct

• School: Western University
• Department: Physiology
• Course: Physiology 2130
• Professor: John Bell

Document Summary

List the building blocks for carbohydrates, proteins, and lipids: carbs. Some are disaccharides (two monosaccharaides) or polysaccharides (many monosaccharaides) and they must be broken down into monosaccharaides to be digested: lipids: Lipids are made up of triglycerides, fatty acids chains and phospholipids. 11 non-essential that are made by the body. 9 essential that the body does not make and we need to get it from diet. Describe the functions, secretions and structure of the stomach: structure: The upper portion is dome-shaped and called the fundus. The middle portion is called the body. The lower portion is called the antrum or sometimes the pyloric region. The distal end of the stomach contains the pyloric sphincter which regulates the emptying into the duodenum. The stomach contains folds called rugae which increases the surface area and allows for expansion: functions: Liquefies, mixes and stores each bolus into chyme via peristaltic contractions.