Biology 449 - Animal Physiology November 10, 2008

Lecture 27

Control of Ventilation

Generation of rhythmic breathing

Regulation of blood gases

Effects of PCO2

Effects of PO2

Other factors affecting ventilation

Digestive Physiology I

Introduction

Components of food

Overview of GI system

Digestion and absorption

General structure of the GI "tube"

Components

Function and control of the GI tract

Physical breakdown of food

Mouth

Terms to Know

Medulla
Respiratory center

Central pattern generator
Dorsal respiratory group
Ventral respiratory group

Medullary inspiratory neurons
Medullary expiratory neurons

Carotid bodies
Aortic bodies
Blood-brain barrier

Carbohydrate
Monosaccharide
Disaccharide
Polysaccharide
Starch
Glycogen

Triglyceride

Gastrointestinal system

Digestion
Absorption

 

Serosa
Submucosa
Mucosa
Lumen

Peristalisis
Motility

Mastication

 

Readings

Lectures 25-27: Chapter 11, pages 498-518
Lectures 27-29: Chapter 14, pages 638-661