INDEX 



127 



effect of CO2 pressure on, 

 34 



effect of cutting vagus 

 nerves on, 21, 25, 26 



effect of oxygen deficiency 

 on, 42, 43 



effect of partial obstruc- 

 tion on alveolar CO2, 13 



essential factors in, 3 



extent of voluntary con- 

 trol, 11 



frequency relation to alve- 

 olar C0 2 , 12 



in diabetes, 35 



in regulation of alveolar 

 C0 2 , 7, 9, 11, 14 



influence of vagus nerve 

 on, 21, 22, 23, 24, 26 



influence of vagus nerve in 

 man on, 23, 24 



"mechanism" in regulation 

 of, 16 



regulation of, 7, 9, 11, 14, 

 26, 27, 38, 40, 42, 43, 46, 

 47 



regulation of, in oxygen 

 deficiency, 43 



vagus nerve in regulation 

 of, 21, 22, 23, 24 



"vitalism" in regulation of, 

 17 

 Breuer, 21, 23 



"Buffer substances" in blood, 

 36 



in urine, 40 



Canaries, in detection of 

 small percentages of car- 

 bon monoxide, 46 

 Capillaries, activity of walls 

 after bleeding and trans- 

 fusion, 80 

 passive congestion in regu- 

 lation of venous pres- 

 sure, 74, 75 

 Carbon dioxide, 3, 4 

 absorption curve in blood, 



32, 33, 34 

 absorption in blood, 41 

 absorption in blood during 



violent exercise, 41 

 effect on divers, 19, 20 

 effects on circulation, 15 

 in arterial blood, 27, 32 

 in chemical combination in 



blood and plasma, 31 

 in inspired air, effect of 



high percentage of, 9 

 in regulation of gaseous 



contents of blood, 72 

 "mass influence" of, 32 

 regulation of circulation 



rate by, 76 

 relation of barometric 

 pressure to partial pres- 

 sure of, 13 

 removal in a vacuum, 32 

 secretion by lungs, 67 

 Carbon dioxide in alveoli, 

 and frequency of breath- 

 ing, 12 

 at high altitudes, 47 



