INDEX 



643 



Nymphse, 569. 



Obesity, 514. 



Oblique muscles of eye, 247. 



Occipital bone, 60; condyle, 62, 69; 



lobe of cerebrum, 176. 

 Oculomotor nefve, 150. 

 Odontoid process, 58, 75. 

 Odors, nature of, 240. 

 Old-sightedness, 266. 

 Olecranon, 66. 

 Olein, 15. 



Olfactory areas of cerebrum, 157. 

 Olfactory lobes, 145; nerves, 150; 



organ, 239. 

 Omentum, 449. 

 Ophthalmic nerve, 150. 

 Opsonins, 309. 

 Optical defects of eye, 262. 

 Optical system, 258; of eye, 259. 

 Optic chiasma, 150, 251; disk, 250; 

 nerve, 35, 150, 251; thalami, 146, 

 153; tracts, 150, 251. 

 Optogram, 273. 

 Orbicularis oris. 119; palpebrarum, 



119, 245. 

 Orbit, 62. 



Organ of Corti, 233. 

 Organs, 1, 34; of circulation, 322; of 

 digestion, 442; of excretion, 516; of 

 movement, 78; of nervous system, 

 135; of reproduction, 562; of res- 

 piration, 386; of secretion, 480; of 

 sensation, 204, 226, 243. 

 Origin of muscles, 82. 

 Os innpminatum, 52, 65, 67. 

 Osmosis, 19. 



Osmotic pressure, 19, 93. 

 Os orbiculare, 229. 

 Ossein, 49. 

 Ossicles, auditory, 229: functions of, 



230. 



Osteoblast, 46. 

 Osteoclast, 48. 

 Otoliths, 237. 

 Oval foramen, 227. 

 Ovary, 567; structure of, 570. 

 Overtones, 224. 

 Oviduct, 567. 

 Ovulation, 571. 

 Ovum, 29, 571; fertilization of, 573; 



maturation of, 560. 

 Oxidase, 425. 



Oxidation, 38; in muscle, 104, 114; 

 as source of animal heat, 541; 

 "recovery," 110. 

 Oxygen, 9; absorption of by blood, 



420; interchanges in blood, 421. 

 Oxyhemoglobin, 417. 

 Pacinian corpuscles, 213. 



Pain, 172, 205, 206, 211; internal, 213; 

 localization of, 213. 



Palate, 443. 



Palatine bones, 60. 



Palmatin, 15. 



Pancreas, 5, 39, 114, 460. 



Pancreatic juice, 465; secretin, 487; 

 secretion, control of, 486. 



Papillae, lachrymal, 245; of skin, 531; 

 of tongue, 241, 446. 



Papillary muscles, 329; use of, 342. 



Paraglobulin, 302. 



Parathyroids, 305. 



Parietal bones, 60; lobe, 176. 



Parieto-occipital fissure, 176. 



Parotid gland, 447. 



Parthenogenesis, 560. 



Partial tones, 224. 



Parturition, 578. 



Pasteurization of milk, 582. 



Patella, 66. 



Patheticus nerve, 150. 



Pathogenic organisms, 306. 



Pathology', definition, 1. 



Paths, nervous, of various senses, 172. 



Pawlow (Pavloff), 485. 



Peas, 508. 



Pectoral arch, 64. 



Peduncles of cerebellum, 165. 



Pelvic girdle, 64, 67. 



Pelvis of kidney, 520. 



Penis, 565. 



Pepsin, 15, 464. 



Pepsinogen, 468. 



Peptone, 13, 464. 



Perceptions, 219; auditory, 235; 

 visual, 285, 286, 287, 288. 



Pericarditis, 325. 



Pericardium, 323. 



Perichondrium, 45. 



Perilymph, 231, 233. 



Perimeter, 279. 



Perimysium, 83. 



Periosteum, 46. 



Peripheral nervous system, 139; ref- 

 erence of sensations, 218. 



Peristalsis, 472. 



Peritoneum, 5, 450. 



Permanent cartilage, 44. 



Permeable membrane, 19. 



Perspiration, 535. 



Peyer's patches, 383. 



Phagocytes, 302, 307; action of in 

 resisting infection, 307. 



Phagacytosis, 302. 



Phalanges, 66. 



Pharynx, 442, 448. 



Phlorhizin, 498. 



Phosphoproteins, 13. 



