INDEX. 



935 



Reflex actions, reflex arc, 134 



respiratory, from nose, larynx, 



and pharynx, 638 

 special and deep reflexes of cord, 



151 



spinal reflexes, 136 

 theory of, 138 



through peripheral ganglia, 143 

 through vasodilator nerves, 566 

 time of, 140 



Tiirck's method of studying, 142 

 Refractive power of eye, 297 . 

 Refractory period of heart beat, 523 



of nerve cell, 133 

 Regeneration in nerve fibers, 118 



of parts of body, 901 

 Reinforcement of knee-kick, 147 

 Rennin, 715 



of kidney, 807 



Reproduction, changes during preg- 

 nancy, 887 



in uterus in menstruation, 875 

 chemistry of spermatozoa, 895 

 determination of sex, 901 

 erection, 896 

 fertilization of ovum, 883 

 functions of placenta, 885 

 general statements, 871 

 growth and senescence, 904 

 heredity, 899 



implantation of ovum, 884 

 mammary glands, 889 

 menstruation, 874 

 nutrition of embryo, 885 

 ovulation, 872 

 parturition, 888 

 properties of spermatozoa, 893 

 relation of ovaries to menstrua- 

 tion, 876 

 structure and functions of corpus 



luteum, 872 



of Graafian follicles, 872 

 Residual air, 601 



Resonance, importance of, in func- 

 tions of ear, 376 



Respiration, abdominal type, 597 

 acapnia, 646, 651 

 accessory centers of, in brain, 640 



respiratory movements, 598 

 anatomy of thorax, 591 

 apnea, 643 

 artificial, 602, 612 

 aspiratory action of, on blood-flow, 



608 



asphyxia, 644 

 automatic action of respiratory 



center, 633 



bronchoconstrictor and broncho- 

 dilator fibers, 646 

 calorimeter, 859 

 capacity of the bronchi, 602 

 chamber, 810 



Respiration, chemical composition of 

 inspired and expired air, 613 



Cheyne-Stokes type of, 654 



complemental air, 601 



condition of carbon dioxid in blood, 

 625 



costal, 597 



definition of inspiration and ex- 

 piration, 592 



dissociation of oxy hemoglobin, 624 



dyspnea, 596, 643 



effect of anemia upon, 654 



of changes in barometric pressure 



upon, 650 



in composition of air, 648 

 of muscular work upon, 648 



exchange of gases in, 613 



forced, 596 



gaseous exchange in lungs, 627 



gases of blood, 617 



history of, 587 



hyperpnea, 643 



increased heart-rate during inspira- 

 tion, 612 



injurious effect of expired air, 614 



intrapulmonic pressure, 604 



intrathoracic pressure, 605 



mechanism of inspiration, 593 



methods of recording, 598 



minimal air, 601 



modified respiratory movements, 

 653 



mountain sickness, 650 



muscles of expiration, 595 

 of inspiration, 595 



negative pressure in thorax, 606 



normal stimulus of, 640 

 ventilation of alveoli, 602 



of swallowing, 657 



origin of negative pressure in 

 thorax, 607 



physical theory of, 627 



physiological anatomy of organs 

 of, 591 



pneumothorax, 608 



reflex stimulation of respiratory 

 center, 633 



relation of vagus nerve to, 635 



residual air, 601 



respiratory center, 631 

 quotient, 652 

 waves of blood-pressure, 609 



secretion of gases in lungs, 630 



spinal respiratory centers, 632 



supplemental air, 601 



tension of gases in alveolar air, 628 

 in arterial blood, 629 

 in tissues, 629 

 in venous blood, 628 



tidal air, 601 



value of nitrogen in, 623 



ventilation, principles of, 614 



