INDEX 



541 



digestion, 397; of excretion, 462; 

 of movement, 73; of nervous sys- 

 tem, 116; of reproduction, 502; 

 of respiration, 348; of secretion, 

 432; of sensation, 169, 187, 207. 



Origin of muscles, 79. 



Os innominatum, 61. 



Osmosis, 258. 



Osmotic pressure, 259. 



Os orbiculare, 189. 



Ossein, 46. 



Ossicles, auditory, 188: functions of. 

 197. 



Osteoblast, 44. 



Osteoclast, 46. 



Otoliths, 200. 



Oval foramen, 188. 



Ovary, 510; structure of, 513. 



Overtones, 194. 



Oviduct, 510. 



Ovulation, 515. 



Ovum, 30, 514; fertilization of, 517; 

 maturation, 514. 



Oxidase, 384. 



Oxidation, in muscle, 100; as source 

 of animal heat, 485. 



Oxygen, absorption of by blood, 379; 

 interchanges in blood, 381. 



Oxyhemoglobin, 379. 



Pacinian corpuscles, 177. 



Pain, 176. 



Palate, 398. 



Palatine bones, 56. 



Palmatin, 14. 



Pancreas, 415. 



Pancreatic juice, 420. 



Pancreatic secretin, 439. 



Pancreatic secretion, control of, 438. 



Papillae of skin, 476. 



Papillae of tongue, 401. 



Papillary muscles, 294; use of, 307. 



Paraglobulin, 10. 



Parathyroids, 272. 



Parietal bones, 56. 



Parietal lobe, 147. 



Parieto-occipital fissure, 147. 



Parotid gland, 403. 



Parthenogenesis, 505. 



Partial tones, 194. 



Parturition, 520. 



Pasteurization of milk, 524. 



Patella, 62. 



Patheticus nerve, 129. 



Pathogenic organisms, 274. 



Pathology, definition, 1. 



Peas, 455. 



Pectoral arch, 60. 



Pelvic girdle, 60. 



Pelvis of kidney, 466. 



Penis, 508. 



Pepsin, 419. 



Pepsinogen, 422. 



Peptone, 12, 419. 



Perceptions, 183; auditory, 199; 

 visual, 249. 



Pericarditis, 290. 



Pericardium, 290. 



Perilymph, 190. 



Perimeter, 243. 



Perimysium, 81. 



Periosteum, 44. 



Peripheral nervous system, 119. 



Peripheral reference of sensations, 

 183. 



Peristalsis, 426. 



Peritoneum, 5, 406. 



Permeable membrane, 259. 



Perspiration, 480. 



Peyer's patches, 346. 



Phagocytes, 266; action of in resisting 

 infection, 275. 



Phagocytosis, 266. 



Phalanges, 62. 



Pharynx, 404. 



Phlorhizin, 448. 



Phospho proteins, 11. 



Phrenic nerve, 128. 



Physiological division of labor, 31. 



Physiological properties, 16. 



Physiological systems, 36. 



Physiology, 1; of bruin, 142; of di- 

 gestion, 417; of ear, 196; of eye, 

 231; of heart, 304; of kidney, 469; 

 of metabolism, 442; of muscle, 87; 

 of nerve, 134; of respiration, 348; 

 of sensation, 169; of skin, 479; 

 of smell, 202; of the spinal cord, 

 136; of taste, 204; of touch, 178. 



Pia mater, 121. 



Pigment, 13; of iris, 214. 



Pitch, audible limits of, 194; defini- 

 tion of, 194; range of, in human 

 voice, 497. 



Pituitary body, 272. 



Pivot joints, 71. 



Placenta, 520. 



Plain muscular tissue, see Smooth 

 muscle. 



Plasma, 267. 



Platelets, or placques of blood. 



Pleura, 5, 351. 



Plexus, 127; of Auerbach, 411 ; brach- 

 ial, 127; cardiac, 133; cervical, 

 127; lumbar, 128; of Meissner, 411 ; 

 sacral, 129; solar, 411. 



Pneumogastric nerves, 131. 



Poikilothermous animals, 483. 



