Vlll 



CONTENTS 



PAGE 



LESSON XIV. Cardiac Cycle Influence of the Sinus . . 61 

 XV. Nervous Control of Heart Effect of Drugs . 65 



SECTION IV. RESPIRATION 

 LESSON XVI. Ventilation of the Lungs 



71 

 71 



SECTION V. MISCELLANEOUS 

 LESSON XVII. Digestion Temperature Yeast . 



74 

 74 



APPENDIX Electrical Apparatus used in Practical Physiology . 77 



ADVANCED COURSE. By M. S. PEMBREY 



CHAPTER 



I. Properties of Nerve 89 



II. Conditions which affect Muscular Contraction . . 91 



III. Strength of Stimulus as affecting the Excitation of 



Nerve and the Contraction of Voluntary Muscle . 94 



IV. Extensibility and Elasticity of Muscle ... 95 

 V. Load and After-Load 99 



VI. Summation of Stimuli 102 



VII. Effect of Distilled Water and of Various Salts on Muscle 104 



VIII. Fatigue of Voluntary Movement and of a Muscle- 

 Nerve Preparation with its Circulation Intact . .107 



IX. Rate of Transmission of a Nervous Impulse . . 113 



X. Polarisation of Electrodes and Unpolarisable Electrodes 113 



XL Transmission of a Nervous Impulse in both Directions 115 



XII. Relation between Muscle and Nerve Independent 



Excitability of Muscle . . . . .110 



XIII. Electromotive Properties of Muscle and Nerve . . 116 



XIV. Galvanometer and Capillary Electrometer . . 119 

 XV. Effect of Constant Current upon Muscle and Nerve . 122 



XVI. Effect of Constant Current upon Excitability and 



Conductivity of Nerve . . . . .123 



XVII. Absence of Fatigue in a Stimulated Nerve . . . 129 



XVIII. Respiration 130 



