INDEX. 



1055 



Reflex extensor, time of, 146 



Turck's method of studying, 149 

 special spinal, 160 

 spinal, 142 



Refractive power of eye, 317 

 Refractory period of heart-beat, 579 

 of nerve-cell, 139 

 of nerve-fiber, 118 

 Regeneration in nerve-fibers, 124 

 Reinforcement of knee-kick, 155 

 Reproduction, changes during preg- 

 nancy, 997 



in uterus in menstruation,' 984 

 chemistry of spermatozoa, 1006 

 determination of sex, 1015 

 erection, 1007 

 fertilization of ovum, 992 

 functions of placenta, C95 

 general statements, 980 

 growth and senescence, 1017 

 heredity, 1010 

 implantation of ovum, 994 

 mammary glands, 999 

 menstruation, 983 

 nutrition of embryo, 995 

 ovulation, 981 

 parturition, 998 



properties of spermatozoa, 1004 

 relation of ovaries to menstruation, 



985 

 structure and functions of corpus 



luteum, 981 



of Graafian follicles, 981 

 Residual air, 658 



Resonance, importance of, in func- 

 tions of ear, 398 



Respiration, abdominal type, 654 

 acapnia, 708, 714 

 accessory centers of, in brain, 701 



respiratory movements, 655 

 anatomy of thorax, 648 

 apnea, 706 

 artificial, 659, 668 

 asphyxia, 707 

 aspiratory action of, on blood-flow, 



665 

 automatic action of respiratory 



center, 693 



bronchoconstrictor and broncho- 

 dilator fibers, 709 

 calorimeter, 963 

 capacity of the bronchi, 658 

 chamber, 901 

 chemical composition of inspired 



and expired air, 669 

 Cheyne-Stokes type of, 716, 717 

 complemental air, 658 

 condition of carbon dioxid in blood, 



684 



costal, 654 



definition of inspiration and expira- 

 tion, 649 



Respiration, dissociation of oxyhemo- 



globin, 683 

 dyspnea, 653, 706 

 effect of anemia upon, 717 



of changes in barometric pressure 



upon, 713 

 in composition of air, 711 



of muscular work upon, 710 

 exchange of gases in, 669 

 forced, 653 



gaseous exchange in lungs, 686 

 gases of blood, 674 

 history of, 644 

 hyperpnea, 706 



increased heart-rate during inspira- 

 tion, 580 

 injurious effect of the expired air, 



670 



intrapulmonic pressure, 661 

 intrathqracic pressure, 662 

 mechanism of inspiration, 650 

 methods of recording, 655 

 minimal air, 658 

 modified, respiratory movements, 



716 



mountain sickness, 713 

 muscles of expiration, 652 



of inspiration, 652 

 negative pressure in thorax, 663 

 normal stimulus of, 701 



of swallowing, 721 



ventilation of alveoli, 659 

 origin of negative pressure in 



thorax, 664 



physical theory of, 685 

 physiological anatomy of organs of, 



648 



pneumothorax, 665 

 reflex stimulation of respiratory 



center, 694 



relation of vagus nerve to, 695 

 residual air, 658 

 respiratory center, 691 



quotient, 714 



waves of blood-pressure, 666 

 secretion of gases in lungs, 688 

 spinal respiratory centers, 692 

 supplemental air, 658 

 tension of gases in alveolar air, 687, 



688 



in arterial blood, 688 

 in tissues, 688 

 in venous blood, 687, 688 

 tidal air, 657 

 value of nitrogen in, 681 

 ventilation, principles of, 670 

 vital capacity, 657 

 volumes of air respired, 656 

 voluntary control of, 699 

 Respiratory center, 691, 700 



automatic activity of, 693 



normal stimulus of, 701 



