8i6 



INDEX. 



Reflex functions of medulla ob- 

 longata, 516. 



of spinal cord, 501. 

 Refraction, laws of, 643. 

 Refracting media of eye, 643. 

 Renal arteries, arrangement of, 445. 



veins, blood of, 97. 

 Repair. See Nutrition. 



retarded in paralysed parts, 391. 

 Repetition, nutritive, 387. 

 Reproduction, nutritive, ib. 

 Reserve air, 212. 

 Residual air, ib. 

 Respiration, 197. 



abdominal type of, 207. 



ammonia and otber products ex- 

 haled by, 229. 



carbonic acid increased by, 221. 



changes of air in, 219, 220. 

 of blood in, 229. 



costal types <5f, 209. 



force of, 215-18. 



frequency of, 213. 



influence of brain on, 505. 



of medulla oblongata, 236-38, 



SH-I7. 



of pneumogastric nerve, 515, 



561. 



mechanism of, 205. 

 movements of, 206-210. See Re- 

 spiratory Movements. 



of air in, 2 1 8. 



of blood in, 219. 

 nitrogen in relation to, 226. 

 oxygen diminished by, 225. 

 quantity of air changed in, 2 1 1 . 

 relation of to the pulse, 136. 

 structure of organs of, 197-204. 

 suspension and arrest of, 238. 

 temperature of air increased by, 



221. 



types of, 207. 



watery vapour exhaled in, 227. 

 Respiratory capacity of chest, 212. 

 food, 255. 



function of skin, 438. 

 movements, 206-10. 



of air-tubes, 217. 



centre of, the medulla oblongata, 



5*5- 



effect of on circulation, 184. 

 excited through nerves, 516. 



by various stimuli, 517. 

 of expiration, 209. 



Respiratory movements, continued. 

 of glottis, 210. 

 influence on amount of carbonic 



acid, 222. 



of inspiration, 206. 

 relation to will, 505. 

 various, mechanism of, 231. 

 muscles, 206, 209. 

 power of, 214. 

 secondary, 237. 

 nerves, 237. 

 rhythm, 210. 



tract of mucous membrane, 404. 

 Rest, favourable to coagulation, 75. 

 Restiform todies, 512, 513. 

 Retching, explanation of, 297. 

 Rete mucosum, 422. 



testis, 733. 

 Retina, 639. 



duration of impressions on, 660. 



of after-sensations, 660. 

 effect of pressure on, 666. 

 focal distance of, 650. 

 function of, 642. 

 image on, how formed distinctly, 



648-50. 



inversion of, how corrected, 654. 

 insensible at entrance of optic 



nerve, 664. 

 insufficient alone for distinct 



vision, 643. 

 in quadrupeds, 668. 

 reciprocal action of parts of, 662. 

 in relation to direction of vision, 



657. 



to motion of bodies, 658. 

 to single vision, 665-72. 

 to size of field of vision, 655-57. 

 structure of, 639. 

 Rhythm of Heart, cause of, 138. See 



Heart. 



respiratory, 210. 

 Rigor mortis, 593. 



affects all classes of muscles, 595. 

 phenomena; and causes of, 594. 

 Rima glottidis, movements of in re- 



piration, 2 1 1. 

 Rods of Corti, 679. 



use of, 693. 

 Root of nail, 433. 

 Root-sheath of hair, 433. 

 Roots of spinal nerves, 493, 495- 

 anterior and posterior, special pro- 

 perties of, 496. 



