176 



PHYSIOLOGICAL TRIGGERS 



Critical concentration: see Threshold 



Critical increment: see Trigger 



Critical point: see Threshold 



Crustacea, 90 



Curare, 140, 165 



Current: see Electrogenesis 



Cyanide, 53 



Cycle, 4, 73-78, 84, 104, 105, III, 113-115, 



123, 132-145 

 Cyclosis, 14 

 Cytochrome system, 53 



-deactivation, 104, 115 

 Decremental relation: see Graded relation 

 Dendrite, 85, 121, 123, 126, 135, 143 

 Depolarization, 85, 86, 88, 90, 93, 94, 120, 



124, 126, 127, 131, 132, 134, 13s, 139- 



143 

 Desoxycorticosterone, 156, 157 

 Development, 46, 54, 55 

 DFP, 126, 129, 130 

 Diapause, 5-8, 46-57, 73 

 Diffusion, 37, 91, 94, 95, 115, 142, 144 

 Discharge: see Potential 

 Dose-survival relation, 10 



r!/ar, 60-71 



Earthworm, 126, 132 



Eel, 126, 132, 137, 143 



Egg, 5-7, 28-41, 48, 51. 53 



Egg water, 23, 25-27 



Elastic element, 114 



Electric fish, 123, 126, 131, 132, 137, 143 



Electroencephalogram, 164-1 74 



Electrogenesis {see also Brain wave. Depo- 

 larization, Ionic currents. Potential), 

 119, 120, 123, 124, 126, 128, 130-132, 

 137, 140-142, 144, 145 



Electrolyte: see specific ion 



Electro])laque, 126, 130-132, 137-139, 141- 



143 

 Embryo, 48, 51 



Endolymphatic potential: see Potential 

 E^ndolymphatic space, 68 

 End-plate, 85, 87, 132, 137-139, 141 

 End-])late potential: see Potential 

 Energy hum]), 3, 5, 118 

 Energy, potential, 2, 4, 6, 68, 103, 119, 120 

 Energy release, 3, 5, 89, 90, no 

 Enzyme, 37, 80-84 

 Erythrocyte, 92 

 Eserine, 126, 130 

 Estradiol, 153-157 

 Estrogen, 153, 155, 160, 161 

 Excitation (see also Activation, Trigger), 7, 



69, 125, 126, 129, 131, 140-143 



Explosive reaction {see also All-or-none rela- 

 tion, Chain reaction), 3, 117, 118, 124 



racilitation, 138 



Fatigue, 91, 92, 137, 138, 140 



Fertilization, 6, 7, 17-42 



Fertilizin, 25, 27-29, 31, t,t, 



Fiber, 85-98, 103-116 



Fibril, 7, 94, 95, 103, 104, 108-115 



Firefly, 80-84 



Flash, 80-84 



Flight, 103-115 



Flowering, 5 



Force-velocity relation, no 



Frog, 87, 89-92, 94, 96, 104, 134 



yjalleria melonella, 52 



Giant axon, 120, 125, 126, 130, 132, 134, 138 



Gland 



adrenal, 154 



pituitary, 6, 164-173 



prothoracic, 46 

 Glucose, 155, 156-159 

 Glycolysis, 155, 156 

 Gonadotrophin, 164 



Graded relation, 3, 7, ^t„ 68, 73, 74, 90, 121, 

 123, 124, 126-128, 130, 132, 134, 135, 



143, 145 

 Granule, 34 



Growth, 10, 13, 46, 153, 155, 156 

 Guinea pig, 60-71 



Hair cell, 65, 68, 70 



Hearing, 60-71 



Heat production, 91, 92 



Histamine, 169, 170 



Hormone, 5-7, 46, 48, 49, 51, 54, 56, 131, 



136, 137, 152-162, 164-173 

 Host-virus combination, 10 

 Hydrogen ion, 73, 77 

 Hyperpolarization. 120, 125, 132, 133, 136, 



139, 140, 142 

 Hypophysis, 164-173 

 Hypothalamus, 6, 164-173 

 Hypoxia, 72 



Impulse: see Potential 



Inactivation {see also Block, lnhil)ilion), 10, 



14, 83, 124-126, 128-130, 13S, 139, 142 

 Infection, 5-7, 9-16 

 Inhibition {see also Block, Deactivation, 



Inactivation), 53, 54, 83, 121, 133, 136, 



137, 139-143 



Initiation {see also Excitation, Trigger), 17 

 Injury metal)()lism, 52 



