CONTENTS XV11 



CHAPTEE XLVIII PAGE 



ADAPTATIONS OF THE CIRCULATORY AND RESPIRATORY MECHANISMS DURING MUS- 

 CULAR EXERCISE (CONT'D) 435 



The Effect of Muscular Exercise on the Composition of the Alveolar Air, 435 ; 

 Second-Wind, 438; Influence of Oxygen, 439; After Effects, 440; Effort Syn- 

 drome, 441. 



CHAPTER XLIX 



OXYGEN UNSATURATION OF THE BLOOD CYANOSIS. THE THERAPEUTIC VALUE OF 



OXYGEN 443 



Oxygen Unsaturation of the Blood, 443; Therapeutic Value of Oxygen, 445. 



PART V 

 DIGESTION 



CHAPTER L 



GENERAL PHYSIOLOGY OF THE DIGESTIVE GLANDS 453 



Microscopic Changes During Activity, 453; Mechanism of Secretion, 455; 

 Other Changes During Activity, 456; Control of Glandular Activity, 457; 

 Nervous Control, 458. 



CHAPTER LI 



PHYSIOLOGY OF THE DIGESTIVE GLANDS (CONT'D) 460 



Hormone Control, 460; Nervous Control of Pancreas, 462. 



CHAPTER LII 



PHYSIOLOGY OF THE DIGESTIVE GLANDS (CONT'D) 465 



Normal Conditions of Secretion, 465 ; Normal Secretion of Saliva, 466 ; Se- 

 cretion of Gastric Juice, 467; The Intestinal Secretions, 476. 



CHAPTER LIII 

 THE MECHANISMS OF DIGESTION 478 



Mastication, 478; Deglutition or Swallowing, 479; The Cardiac Sphincter, 

 482; Vomiting, 483. 



CHAPTER LIV 



THE MECHANISMS OF DIGESTION (CONT'D) 485 



Movements of the Stomach, 485; Character of the Movements, 485; Effect of 

 the Stomach Movement on the Food, 488; Emptying of the Stomach, 491; 

 Control of the Pyloric Sphincter, 491 ; Influence of Pathological Conditions on 

 the Emptying, 494; Gastroenterostomy, 494. 



CHAPTER LV 



THE MECHANISMS OF DIGESTION (CONT'D) 497 



Movements of the Intestines, 497; Movements of the Small Intestine, 497; 

 Movements of the Large Intestine, 503; Effect of Clinical Conditions on the 

 Movements, 504. 



