370 



INDEX 



Nerve cells, 221 

 centers, 221 

 fibers, 217 

 action of electricity upon, 



234 



afferent, 232 

 classification of, 230 

 degeneration of, 239 

 directions of currents in, 



233 



efferent, 231 

 individuality of, 221 

 medullated, 217 

 non-medullated, 219 

 properties of, 230 

 speed of conduction in, 234 

 terminals, 225 

 between epithelial cells, 227 

 in bulbs of Krause, 228 

 in Golgi's corpuscles, 230 

 in glands, 226 

 in hair-follicles, 226 

 in Meissner's corpuscles, 



229 



in Pacinian corpuscles, 227 

 in plain muscle, 226 

 Nerve terminals, in striped mus- 

 cle, 225 



in tactile menisques, 229 

 trunks, 219 



Nervous system, the, 214 

 development of, 361 

 divisions of, 216 

 general functions of, 214 

 Neural canal, 343 

 Neuroglia, 216 

 Neurons, 216 



communication between, 223 

 Ninth nerve (see Glosso-pharyn- 



geal, 289) 



Nitrogen, amount necessary, 182 

 Nitrogenous equilibrium, 174 

 Nitrous oxide, inhalation of, 161 

 Nutrition, 171 



Olfactory bulb, 277 

 cells, 276 

 center, 269 

 nerve, 276 



Olivary bodies, 251 

 Omphalo-mesenteric vessels, 356 

 Ophthalmic ganglion, 284 

 Optic center, 269 



commissure, 277 



nerve, 277 



thalami, 258 



functions of, 258 



tracts, 277 

 Osmosis, 123 

 Otic ganglion, 284 

 Ova, 329 



Ovary, secretion of, 34 

 Ovulation, 334 

 Oxidation in the body, 171 

 Oxygen, amount consumed, 154 



amount in blood, 157 



condition of in blood, 157 



entrance of into tissues, 159 



loss of in lungs, 148 



Pacini, corpuscles of, 227 

 Pancreas, anatomy of, 100 



histology of, 100 



internal secretion of, 103 



nerve supply of, 103 



secretion in, 103 

 Pancreatic juice, 101 

 Partial pressure of gases, 156 

 Patheticus nerve, 280 

 Pepsin, 91 

 Peptones, 92 

 Pericardium, 42 

 Periosteum, 18 

 Perspiration, 212 

 .Pharynx, 132 

 Pia mater, 237 

 Pinna, 319 

 Pituitary body, 34 

 Placenta, 354 

 Placental circulation, 357 

 Pneumogastric. nerve, 290 



influence of on respiration, 



168 

 stomach and intestines, 



168 

 Pons Varolii, 255 



functions of, 255 

 Posterior chamber of eye, 313 



