INDEX' 



Accommodation, 4 



Acetate, 92 



Acetylcholine, 51, 84, 85-87, 123, 129, 132, 



137-139, 143, 171 

 Acoustics, 60-71 

 Acrosome, 22, 23, 25-27 

 ACTH, 154, 158, 159 

 Actin, 95, 97 



Action potential: see Potential 

 Activation {see also Excitation, Trigger), 5, 



17, 28, 29, 87, 161 

 Active state, 88, 92, 94-96, "5 

 Actomyosin, 115 

 Adaptation, 5, 123, 129, 133 

 Adequate stimulus {see also Threshold, 



Trigger), 5, 6, 117, 123, 138, 140 

 Adrenal gland, 154, 164 

 Adrenergy, 137, 139, 140, 158 

 Agglutination, 14, 22, 26, 29 

 All-or-none relation (see also Chain reaction), 



2, 7, 10, 29, 74, 75, "7, 121, 124, 126- 



128, 142, 145 

 Ammonium, quaternary, 90, 91 

 Amplification, 3, 67, 68, 70, 71, 87, 90, 120, 



124, 145 

 Anaerobiosis {see also Hypoxia), 50, 80-82 

 Analogy {see also Model), 6 

 Anoxia {see also Hypoxia), 50, 80-82 

 Antagonism, 155, 161 

 Antifertilizin, 28, 29 



Antigen-antibody reaction : see Agglutination 

 ATP, 80-83, 95, 96 

 Audition, 60-71 

 Autocatalysis, 3, 37 

 Autogamy, 21 



Autonomic nervous system, 120, 140, 167 

 Axon {see also Giant axon. Neuron), 6, 120, 



126, 130-132, 134, 13s 



iJasilar membrane, 64 



Bioelectricity: see Brain wave, Depolariza- 

 tion, Electrogenesis, Ionic currents, 

 Polarization, Potential 



Bioluminescence, 80-84 



Block {see also Inactivation, Inhibition), 6, 

 21, 30, 38-40, 46, 104, 138-140, 171 



Brain {see also Cortex, Hypothalamus), 46- 

 49, 51, 135-137, 141, 164-173 



Brain wave, 164-174 

 Bromide, 92, 93 

 Bumble bee, 108-110 

 Burst: see Carbon dioxide 

 Butyrate, 92 



Calcium, 22, 86, 90, 95, 96, 123, 129, 138, 



158 

 Capacity, 89 

 Carbohydrate metabolism: see Intermediary 



metabolism 

 Carbon dioxide, 6, 53, 72-78 

 Carbon monoxide, 53-55 

 Carrier, 86, 87, 120, 126, 128, 142 

 Cat, 135, 136, 140, 142, 143, 165 

 Cecropia, 47, 51 

 Cell, 9-16, 17-45, 46, 47, 51, 60, 65, 83, 84, 



103, 119, 152, 158 

 Cell enlargement, 51 

 Central nervous system, 72, 120, 131, 136, 



137, 164-173 

 Chain, 4, 8, 103 

 Chain reaction {see also All-or-none relation, 



Propagation), 4, 37, 41 

 Chelation, 25, 26, 31-33 

 Chloride, 87, 91-93, 138, 141, 142 

 Cholinergy, 51, 137-139 

 Cholinesterase, 129, 137 

 Cicada, 103, 104 

 Cilium, 20 



Click mechanism, 104, iir 

 Cochlea, 62-66 

 Cochlear microphonic {see also Potential), 6, 



7, 62, 68 

 Competition, 49, 140, 161 

 Conductance, 91, 120, 124, 125, 132, 141-143 

 Conduction {see also Propagation), 120, 121, 



130 

 Conductivity, 95 

 Conjugation, 18 

 Contractile element, 114, 115 

 Contraction, 5-7, 85-98, 103-116 

 Contracture, 90 



Cortex: see Adrenal gland, Brain, Egg 

 Cortical reaction, 34-37 

 Cortisol, 154, 156, 157, 161 

 Coupling, 103, 104, 118 

 Crayfish, 121, 123, 126, 132, 133, 142, i43 



1 Certain abbreviated forms have been used. ACTH— corticotropin; ATP— adeno- 

 sinetriphosphate; DFP— diisopropyl fluorophosphate. 



175 



