410 



I nth. 



N< rvea, nutrition <>f, 259 



of thr oesophagus, 289 



olfactory, 313 



optic, 295 



of pancreas, 1 71 



pathetic, 285 



pharyngeal, 287, 288 



phrenic, effect of division of, 91 



pneumogastric. 58, 92, 288 

 branches to intestine*, 157 

 branches to stomach, 141 

 influence on circulation, 72 

 influence on heart, 58 

 summary of functions of, 289 



of respiration, 289 



sensory roots, function of, 2*57 



seventh pair, 286 



sixth pair, 286 



of the skill, 191 



spinal, 266 

 accessory, 290 



'splanchnic, 141 



of stomach, 140 

 in rumination, 140 



sympathetic, influence! on heart, 



of taste, 287, 314 



of the tongue, 286. 290, 287 



vaso-motor, 69, 71, 267, 279, 

 291 



velocity of impulses through, 

 259 

 Nervous system, 253 



etrebrum, the, 281, 282 



corpora quadrigemina, 280 



corpora striatn, 280 



crura cerebri, 280 



medulla oblongata, 275 



pons varolii. 280 



reflex action in. 268 



spinal cord, 260 



sympathetic system, 290 



thalami optici, 280 

 Xitrogen in body, 2 

 Nitrogenous acids, 12 



bodies, 1 

 Non- nitrogenous bodies, 6 

 Nostrils, movements of, 82 

 Nutrition, 220 



amount of food required for, 232 



effect of nitrogenous food upon, 

 227 



effect of inorganic food upon, 229 



effect of muscular exertion upon, 

 232 



i [feet of non-nitrogenous food 



upon, 248 

 effect of starvation upon, 230 

 effect of Income and expenditure 



on, 220. 222. 221, 225 



Nutrition lie embryo, 391 



of nerves, 259 

 Nutritive ratio, 235 



Oats, digestion of, 116, 120 

 Odour, perception of, 313 

 (Edema-, cause of, 1 79. 1 B 1 

 (Esophageal groove in rumination, 



138 

 (Esophagus dining deglutition, 99 



during rumination, 101 



nerve supply of, 288 



Btfucture of, 100 

 Oil, olein, 13 



palmitin, 13 



stearin, 13 



emulsitica tion of, 170, 189 



saponification of, 170 

 Old age, 399 

 Olfactory lobes, 313 



nerves, 313 



sensations, 313 

 Omasum, 132 



condition of food in, 132 



function of, 132 



reaction of. 133 

 Ophthalmoscope. .'105 

 Optic nerve, 295 

 Orbit, 294 



: Organ of Jacobson, 313 

 Organism, constituents of, 1 

 Ovum, 380 



changes in, 382 



development of, 382 



impregnation of, 382 

 Ovary, 380 

 Oxygen, diffusion of, into tissue-, 87 



in body. 2 



of inspired and expired air, 93 



union with haemoglobin, 87 



uses of. in tissues, 88 



absorption of, by blood, not 

 according to law of pressure, 



Palate, soft, during deglutition, t . > '.' 



nerves of, 100 

 Pancreas, 159, 169 



changes in colls of, 172 



nervous mechanism of, 171 

 Pancreatic digestion compared with 

 that of stomach, 1 7 1 



juice, 169 



action on plot. ids. 170 



action on tats, 170 

 action on staieli, 1 71 

 amount of, 173 

 analysis of, 169 



emulsifj Lng action of, 17 1 

 ferments of, 170, 172 



