128 



INDEX 



calculated for dry air, 14 



constancy of, 8, 10 



during apnoea, 9, 22 



during rest, 27 



during severe exertion, 27, 

 41 



effect of acids on, 35 



effect of alkalis on, 35 



effect of diabetes on, 35 



effect of diet on, 35 



effect of hyperpnoea on, 42 



effect of partially ob- 

 structed breathing on, 13 



effect on breathing, 8, 9 



in oxygen deficiency, 27 



percentage, 8, 9, 13 



pressure and percentage at 

 various barometric pres- 

 sures, 14 



regulation during exercise, 

 10 



regulation of breathing, 7, 

 9, 11, 14 



relation of oxygen alveolar 

 pressure to, 49 



relation to barometric pres- 

 sure, 14 

 Carbon dioxide in blood, and 

 hydrogen ion concentra- 

 tion, 37 



dissociation of, 31 



during apnoea, 9, 22 



indirect regulation by en- 

 dothelial cells, 41, 42 



regulation of breathing by, 

 27,42 



regulation of venous con- 

 striction by, 74 



regulation of venous pres- 

 sure by, 74, 75 

 Carbon dioxide deficiency, in 

 "shock," 15 



symptoms of, 16 

 Carbon dioxide excess, effect 

 on breathing during ex- 

 ertion, 19 



symptoms of, 16 

 Carbon dioxide percentage, 



in alveoli, 8, 9, 13 

 Carbon dioxide pressure, and 

 hydrogen-ion concentra- 

 tion of blood, 37 



at different altitudes, 49 



effect of increased oxygen 

 pressure on, 49 



effect on dissociation curve 

 of oxy-haemoglobin, 30, 

 31 



regulation of breathing, 34 



relation to alveolar oxygen 

 pressure, 49 

 Carbon monoxide, combina- 

 tion with haemoglobin, 

 45 



method of determining 

 oxygen pressure in blood 

 leaving lungs with, 54 

 Carbon monoxide, saturation 

 of blood with mixture of 

 oxygen and, 53, 54 



test for presence of, 46 

 Carbon monoxide poisoning, 

 cause of, 45 



