xvi CONTENTS 



CHAPTER XIII. 

 THE PHYSIOLOGY OF THE CONTRACTILE TISSUES. 



PAGR 



SECTION I. PRELIMINARY OBSERVATIONS PHYSICAL AND TECH- 

 NICAL DATA - 696 

 Cilia - -77 



SKCTION II. PHYSICAL PROPERTIES AND STIMULATION OF 



MUSCLE - - 709 



Elasticity of muscle - - 709 



Stimulation of muscle - 711 



Direct excitability of muscle - - 712 



SECTION III. PHYSICAL AND MECHANICAL PHENOMENA OF THE 



MUSCULAR CONTRACTION - - 716 

 Optical phenomena structure of muscle - - 716 

 * Mechanical phenomena - 719 

 Muscular fatigue - 723 

 Electrical tetanus - - 730 

 Voluntary contraction - 734 

 Thermal phenomena and transformation of energy in mus- 

 cular contraction - - 736 

 Relation between mechanical energy and heat-production in 

 active muscle - 739 



SECTION IV. CHEMICAL PHENOMENA OF MUSCULAR CONTRACTION 74 1 



Formation of lactic acid - 743 



The substances metabolized in muscular contraction - 745 



CHAPTER XIV. 

 NERVE. 



SECTION I. THE NERVE-IMPULSE OR PROPAGATED DISTURB- 

 ANCE: ITS INITIATION AND CONDUCTION - 755 

 Stimulation of nerve - - 757 

 Excitability of nerve - - 758 

 Electrotonus - - 759 

 Conduction in nerve - - 764 

 Velocity of the nerve-impulse - 767 



SECTION II. CHEMISTRY, DEGENERATION, AND REGENERATION 



OF NERVE - - 768 



Chemistry of nerve - - 768 



Degeneration of nerve ... 769 



Regeneration of nerve - 772 



Trophic nerves - 778 



Classification of nerves .... 780 



