310 



ELEMENTS OF PHYSIOLOGY 



Capsule of gland, 30 



Carbohydrates, 94; digestion of, 

 104, 112, 120 ; as source of power 

 for work, 217 ff. ; fuel value of, 

 217; as food in cold climates, 

 220 ; as source of fat, 224 



Carbon dioxide (carbonic acid), 

 formed during muscular work, 

 48, 60, 178, 299; in lymph, 167; 

 in blood plasma, 168 ; action of, 

 on respiratory center, 176 



Cardiac region of stomach, 107 



Cell walls in plants, 98 



Cells, 31, 32, 34, 36, 39, 40 (fig.), 41 ; 

 as chemical factories, 46 ff . ; waste 

 and repair of, 229 ff. 



Cellulose, 97 



Central canal of spinal cord, 264 



Cerebellum, 264 (fig.), 265, 267, 270 

 (fig.), 279 



Cerebrum, 82, 264 (fig.), 266 (fig.), 

 267 (fig.), 268 (fig.); connections 

 with other parts of the nervous 

 system, 275 ; functions of, 279 ff. 



Cervical vertebrae, 14 



Chloral, 305 



Chloroform, 280 



Chocolate, 291 



Choroid, 243, 244, 247 (fig.) 



Chyme, 117 



Ciliary muscle, 244 



Ciliary region of eye, 244 (fig.) 



Cinders removed from eye, 394 



Circulation, organs of, 21, 143 (fig.) ; 

 time of, 136 ; mechanics of, 139 ; 

 in warm and cold weather, 152, 

 201 ; during muscular activity, 

 154 ; during mental work and 

 sleep, 155 ; during digestion, 157, 

 158 ; nervous factors of, 159 ff. ; 

 essential to respiration, 177 



Clavicle, 19 



Cleavage, chemical, in muscular con- 

 traction, 50 ; of starch and protein 

 in digestion, 102 



Climate, and mental work, 207 ; and 

 feeding, 220 



Coagulation of proteins, 93 



Cocaine, 305 



Coccygeal vertebrae, 14 



Cochlea, 257 



Cocoa, 291 



Coffee, 290 



Cold, effect on circulation of the 

 blood, 152 ; effect on body as 



a whole, 201 ff. ; sensations of, 

 258 



Cold-blooded animals, 191 



Collagen, 94 



Collar bone. See Clavicle 



Collaterals, 78 



Colon, 20 



Color, sensations of, 252 



Compensatory adjustments of the 

 circulation, 153 



Conditioned reflexes, 85 



Conduction of heat, 211 



Connective tissues, structure of, 7, 8, 

 37, 222 ; of glands, 30, 31 ; of 

 muscles, 33-34 ; relation of, to 

 blood vessels, 36 ; relation of, to 

 lymphatics, 39 ; of nerves, 71 ; di- 

 gestion of, 110; of lungs, 169; of 

 skin, 184 



Consciousness, 240, 273, 279 



Constant temperature of the body, 

 190 ; maintenance of, 201 ff. 



Constipation, 132 



Consumption. See Tuberculosis 



Contagious diseases. See Diseases 



Contraction of musclB, 33, 47, 56 



Convection of heat, 212 



Convolutions of cerebrum, 266 (fig.), 

 267 



Coordination, 70, 83, 271 ; training 

 in, 87 , 283 ; by chemical means, 89 



Corium, 184 



Cornea, 243, 244 (fig.), 247 (fig.) 



Corpuscles. See Blood corpuscles 



Cortex of cerebrum and cerebellum, 

 269 



Costal breathing, 172 



Cranial nerves, 268 



Cranium, 17 



Curd of milk, 93 



Curvatures of vertebral column, 

 14 ff., 321 



Curve of fatigue, 56 



Cutaneous sensations, 258 



Cutis, 184 



Cytoplasm, 31, 35, 41, 75 



" Danger zone " of atmospheric tem- 

 perature, 205 



Dendrites, 75, 268, 270, 271 



Dermis, 184 



Dextrines, 101 (fig.), 105 



Dextrose, 101 



Diaphragm, 10 ; action in respira- 

 tion, 171-173 



