INDEX. 



645 



Olivary body, 403 



fasciculus, 404 

 Ophthalmic ganglion, relation of third 



nerve to, 425 

 Optic lobes, corpora quadrigemina, 



hoiuologues of, 411 

 functions of, 411 

 nerve, decussation of, 524 

 fibres of, 377 

 point of entrance insensible 



to sight, 520 



thalamus, function of, 411 

 vesicle, primary, 603 



secondary, 604 

 Optical angle, 514 

 Ora serrata of retina, 501 

 Oral canal and oral opening, 488 

 Organic compounds, instability of, 19 

 peculiarities of some, 18 

 processes, influence of sympa- 

 thetic nerve upon, 450 

 Organization, definition of, 18 

 Organs, plurality of cerebral, 421 

 Organs of sense, development of, 603 

 Os orbiculare, 529 

 Os uteri, 562 

 Osmosis, 294 

 Osseous labyrinth, 529 

 Ossicles of the ear, 529 



office of, 537 

 Ossification, 50 

 Ossicula auditus, 529 

 Otoconia or Otolithes, 533 



use of, 541 

 Ovaries, 560 



enlargement of at puberty, 567 

 Graafian vesicles in, 563 

 Ovisacs, 563 

 Ovula Nabothi, 562 

 Ovum, 564 



action of seminal fluid on, 578 

 changes of in ovary, 566 



previous to formation of em- 

 bryo, 578 



subsequent to cleaving, 581 

 in uterus, 581 

 cleaving of yelk, 579 

 connection of with uterus, 588 

 discharge of from ovary, 567 

 formation of, 566 

 germinal membrane of, 581 

 germinal vesicle and spot of, 565 

 impregnation of, 573 

 structure of, 564 



Oviduct, or Fallopian tube, 560, 561 

 Oxalic acid in urine, 367 

 Oxygen, in blood, 81, 180 



consumed in breathing, 173, 177 

 effects of on color of blood, 77 

 on pulmonary circulation, 

 140 



Oxygen, proportion of to carbonic acid, 



177 



union with carbon and hydrogen, 

 producing heat, 192 



Pacinian bodies or corpuscles. 373 

 Pain excited by the mind, 559 



in paralyzed parts, 380 

 Palate in relation to deglutition, 213 



nerves of, 439 

 Palate and uvula in relation to voice, 



486 



Palmitin, 20 

 Pancreas, 250 



development of, 607 

 functions of, 250 

 Pancreatic fluid, 250 

 Pa,ncreatin, 251 

 Papilla}, of the kidney, 350 



of skin, distribution of, 334 

 end-bulbs in, 337, 338 

 epithelium of, 337 

 nerve-fibres in, 336 

 supply of blood to, 336 

 touch corpuscles in, 336 

 of teeth, 53 

 of tongue, 548 



circumvallate or calyciform, 



548 



of tongue, conical or filiform, 550 

 fungiform, 549 

 use of, 552 

 Paraglobulin, 69 

 Par vagum. See Pneumogastric 



Nerve. 

 Paralyzed parts, pain in, 380 



nutrition of, 308 

 limbs, temperature of, 198 

 preservation of sensibility in, 381 

 Paralysis, cross, 405 



seat of, according to part of cere- 



bro-spinal axis injured, 392 

 Paraplegia, delivery in, 400 



influence of spinal cord shown in, 



392 



reflex movements in, 396 

 state of intestines in, 277 

 Parotid gland, saliva from, 210 

 Particles, changes of in nutrition, 299 

 duration of life in each, 304 

 natural decay and death, 300 

 process of forming new, 305 

 removal when impaired or effete, 



300 



Parturition, mechanism of, 183 

 Patheticus, or fourth nerve, 426 

 Pause in heart's action, 105, 106 



respiratory, 166 



Peduncles of the cerebellum, 414 

 of the cerebrum, 419 



