XVI CONTENTS 



CHAPTER XXXIX PAGE 



THE CONTROL OF KESPIRATION (CONT'D) 352 



Hormone Control of the Eespiratory Center, 352; Tension of CO 2 and O 2 in 

 Arterial Bloorl, 354; Tension of CO 2 and O 2 in Alveolar Air, 356; Tension 

 of CO 2 and O 2 in Venous Blood, 359 ; Fallacies in Estimation of the Alveolar 

 Gases, 361. 



CHAPTER XL 



THE CONTROL OF RESPIRATION (CONT'D) 363 



Variations in the Alveolar CO 2 and the Acid Base Balance in Health and 

 Disease, 363. 



CHAPTER XLI 



THE CONTROL OF RESPIRATION (CONT'D) 366 



The Nature of the Respiratory Hormone, 366; Relationship between CO., of 

 Inspired Air and Pulmonary Ventilation, 367 ; Possibility that CO 2 Specifically 

 Stimulates the Center, 368; Relationship between Alveolar CO 2 and Respira- 

 tory Activity, 371. 



CHAPTER XLII 



THE CONTROL OF RESPIRATION (CONT'D) 373 



Alveolar CO, Tension in Conditions of Anoxemia, 373; Constancy of the Al- 

 veolar CO 2 Tension under Normal Conditions, 373; The Nature of Changes 

 Produced in the Body in Anoxemia, 378. 



CHAPTER XLIII 



THE CONTROL OF RESPIRATION (CONT'D) 382 



Apnea, 382; Periodic Breathing, 385; Types of Periodic Breathing, 385; 

 Causes of Periodic Breathing, 386. 



CHAPTER XLIV 



RESPIRATION BEYOND THE LUNGS 391 



Transportation of Gases by tlje Blood, 392; Transportation of Oxygen, 392; 

 Dissociation Curve of CO 2 , 396; Difference between Curves of Blood and 

 Hemoglobin Solutions, 396; Rate of Dissociation, 399; Dissociation Constant, 

 401. 



CHAPTER XLV 



RESPIRATION BEYOND THE LUNGS (CONT'D) 403 



Means by Which the Blood Carries the Gases, 403; Oxygen Requirement of 

 the Tissues, 408; Mechanism by which the Demands of the Tissues for Oxy- 

 gen are met, 412. 



CHAPTER XLVI 



THE PHYSIOLOGY OF BREATHING IN RAREFIED AND COMPRESSED AIR 415 



Mountain Sickness, 415; Compressed Air Sickness (Caisson Disease), 420; 

 Application of Foregoing Laws in Practice, 424. 



CHAPTER XLVII 

 ADAPTATIONS OF THE CIRCULATORY AND RESPIRATORY SYSTEMS DURING MUSCULAR 



EXERCISE 427 



Circulatory Changes Accompanying Muscular Exercise, 427; Mechanical Fac- 

 tors, 428; Nervous Factor, 430; Hormone Factor, 431. 



