Index 



867 



Cephalopods, ganglionic reflexes in, 815 



giant hbers in, 7b8 



luminescence in, 662, 664 



nervous regulation ol: heart in, 558 



neuromuscular transmission in, 613 



oxygen transport in, 326 



oxygen withdrawal by, 252 



respiratory control in, 263 

 Cerambycidae, cellulose digestion in, 172 

 Cerebellum, functions of, 831 

 Cerebral cortex, areas of, 839 



equipotentiality of function in, 841 

 in mammals, 837 

 motor area, 840 

 premotor area, 840 

 CES, 803 



Cestodes, locomotion in, 816 

 Chaetopterus, luminescence in, 661, 662, 



663 

 Chameleons, color changes in, 714 

 Chelonia, nitrogen excretion in, 198 

 Chemical sense, common, sensitivity of, 



459. See also Chemoreception. 

 Chemoreception, 447-470 



behavior and, 448-457 



in arthropods, 450 



in invertebrates, 448 



in vertebrates, 453 



intensity discrimination in, 465 



physiology of, 457-468 

 Chemoreceptors, 459 



activation of, 465 



classification of, 447 



contact, 448 



control of respiration by, 255 



in insects, 451 



in vertebrates, 453 



sensitivity of, 457 

 Chemotrophic organisms, 112 

 Chiasma, optic, 435 



Chick embryo, nitrogen excretion in, 200 

 Chicken, essential amino acids for, 117 



metabolism in, 232 

 Chilomonas Paramecium, carbon require- 

 ments of, 114 

 oxygen consumption in, 229 

 thiamine and, 123 

 Chironomus, hemoglobin function in, 321, 



322, 323 

 Chitin, 170 



digestion of, 173 

 Chloride ions in blood in relation to chlor- 

 ide in medium, 86 

 in sea water and body fluids, 78 

 in tissues and body fluids, 76 

 ratios of concentration, 82 

 Chlorocruorin, 291, 293, 302, 303 



absorption spectra, 300 



oxygen transport by, 326 

 Cholecystokinin, 156, 763 



Cholesterol, dietary requirements, 134 

 Choline, 129 



Chohnergic regulation of heart, 546, 548, 

 557 



systems in muscles, 608 

 Cholinesterase content of nervous tissue, 

 792 



in electric organs, 620 



types of, 781, 782 

 Chordates, blood pressure in, 538 



exopeptidases in, 167 



proteinases of, 162 

 Chordotonal organs, 493, 494, 495 

 Chromatophores and color change, 677-724 



aneuronic, 707 



dineuronic, 707 



factors aff^ecting, 684 



functional organization of, 688 



functional significance of, 715 



in amphibians, 703 



in annehds, 688 



in cephalopods, 690 



in crustaceans, 693 



in echinoderms, 689 



in fish, 706 



in insects, 691 



in reptiles, 712 



in vertebrates, 703 



index of, 682 



light and, 684 



mononeuronic, 707 



structure and methods of action, 677- 

 684 

 Chromatophorotropins in central nervous 

 system of crustaceans, 700 



in eyestalks of crustaceans, 694-699 

 Chromatosomes, 711 

 Chymotrypsin, 159 

 Ciha, 640-653 



activity of, characteristics of, 643 

 environmental factors and, 649 

 reversal of, 645 

 theories of, 650 



as feeding mechanism, 145 



coordination and control of, 646 



functions of, 640 



metachronism in, 646 



propulsion of food by, 149 



responses to chemicals by, 448 



structure of, 642 

 Ciliates, conduction in, 776 

 Circulation, 531-575. See also Blood and 



Heart. 



367 



summary, 

 CIS, 803 

 Clam, motor innervation in, 601 



photoreception in, 406 

 Clarias lazera, branchial diverticula in, 217 

 Cnidoblast, 656 

 Cnidocil, 656 



