126 
temperature regulation, 80 
function of, 68 
percentage of oxygen in, 28 
saturation with mixture of 
CO and oxygen, 53, 54 
sugar contents of, 76, 77 
Blood, concentration after 
sweating, 79 
venous gas pressure of, 71, 
72 
Blood composition, and spe- 
cific “structure,” 90, 91 
effect of sweating on, 79 
Blood flow, in organs, 69, 70, 
71 
effect of metabolism on, 70 
relation to blood composi- 
tion, 76 
subordinate centres regu- 
lating, 70 
Blood alkalinity, 36, 38 
at high altitudes, 50, 51 
at low barometric pressure, 
51 
dissociation curve as index 
of, 31 
effect of diet on, 37 
in regulation of breathing, | 
by, 42 
nitrogen of urine as index 
of, 39 
regulation by ammonia, 38, 
39 
by “buffer” substances, 
by kidneys, 39, 40, 51 
by liver, 39, 40, 51 
INDEX 
Blood pressure and oxygen 
deficiency, 75 
Blood reaction (see blood 
alkalinity) 
Blood transfusion, effect on 
blood volume and red 
blood corpuscles, 80, 81 
effect of repeated, 81, 95 
Blood volume at high alti- 
tudes, 52 
effect of bleeding on, 80 
effect of transfusion, 80, 
81, 95 
Bohr, 30, 53, 63 
Bone marrow, formation of 
red blood corpuscles in, 
81 
Boothby, 71 
Boycott, 50, 80, 95 
Breathing, 3, 100, 101 
after excessive ventilation, 
46, 47 
apnoea after excessive, 9, 
46, 47 
at altitudes, 47, 48 
COzg in regulation of, 7, 9, 
11, 14 
COz pressure in regulation 
of, 34 
during exercise, 10 
effect of acids on, 35 
effect of alkalis on, 35 
effect of alveolar COg on, 
8, 9, 12 
effect of alveolar oxygen 
on, 8 
