Vlll CONTENTS. 



PAGE 



CHAPTER VIII FOOD AND DIGESTION; Food and Food Principles, 

 The Process of Digestion, Digestion in the Mouth, Deglutition, 

 Nervous Mechanism of Deglutition, Digestion in the Stomach, 

 Movements of the Stomach, Digestion in the Intestines, Moveme ts 

 of the Intestines, Laboratory Experiments in Digestion, Saliva and 

 Salivary Digestion, Gastric Juice and Gastric Digestion, Pancreatic 

 Juice and Pancreatic Digestion 322 



CHAPTER IX ABSORPTION; Absorption in the Stomach, Absorption 



in the Intestines, Absorption from the Skin, the Lungs, etc. . . .388 



CHAPTER X EXCRETION; Structure and Function of the Kidneys, 

 General Structure, The Urine, The Method of Excretion of Urine, 

 The Discharge of the Urine, The Structure and Excretory Func- 

 tions of the Skin, Laboratory Experiments in Excretion 398 



CHAPTER XI METABOLISM, NUTRITION, AND DIET; Metabolism of 

 Proteids, The Metabolism of Fats, the Metabolism of Carbohy- 

 drates, Requisites of a Normal Diet, The Influence of the Duct- 

 less Glands on Metabolism 431 



CHAPTER XII ANIMAL HEAT; Heat-producing Organs, Variation in 

 the Loss of Heat, Variation in the Production of Heat, Influence of 

 the Nervous System on Heat Production 461 



CHAPTER XIII MUSCLE-NERVE PHYSIOLOGY; Chemical Composi- 

 tion of Muscle, The Properties of Living Muscle, Single Muscle Con- 

 tractions, Conditions which Affect the Irritability of the Muscle and 

 the Character of the Contraction, Tetanic and Voluntary Muscular 

 Contractions, The Type of Contraction in Involuntary Muscle and 

 in Cilia, The Function of Nerve Fiber, Some Special Coordinated 

 Motor Activities, Locomotion, The Production of the Voice, 

 Laboratory Experiments on Muscle and Nerves 470 



CHAPTER XIV THE NERVOUS SYSTEM; Function of the Nerve Cell; 

 Specific Energy of the Nerve Impulse, Structure and the Function 

 of the Spinal Cord, Tracts of the Cord, The Functions of the Cord. 

 The Brain, The Medulla Oblongata and Pons, Structure, Func- 

 tions of the Medulla, The Cerebellum, The Midbrain, The 

 Peduncles of the Cerebrum, Corpora Quadrigemina, Corpora 

 Geniculata, Corpora Striata, The Cerebrum, Structure of the 

 Cortex, General Function of the Cerebrum, Localization of the 

 Motor Function, Localization of Sensory Function, Association 

 Centers, The Cranial Nerves, The Physiology of Sleep. The 

 Sympathetic System 534 



