INDEX 595 



Reflex action, paths of. 341, 342 

 of the brain, 526 

 of the cord, 484, 524 

 in conghing, 157 

 Reissner, membrane of, 376 

 Renal (ren, a kidney) artery, 179-183 



constant of, 565 ' 



Rennet, 248 

 Rennin, 248 



Reproduction of tissue, 27, 556 

 Residual air, 148, 564 

 Resistance to etfort, sense of, 352 

 Respiration, 123 



constant of, 564 

 costal, 139 



cubic feet of air needed for, 169, 565 

 diaphragmitic, 139 

 effect of, on circulation, 165 

 essential of, 123 

 internal, of the tissues, 128 

 mechanism of, 135, 141-148, 156, 159 

 nervous apparatus of, 156. 165 

 rat« of, per minute, 148, 152, 564 

 waste in, 151, 269 

 Respiratory centre in medulla oblongata. 156, 158 

 influence of blood supply on, 161 

 changes, 153 

 organs, 24 

 Restlessness, sensation of, 343 

 Rete (a net). Malpighii, 540 

 Retiform connecti^•e tissue, 90, 559 

 Retina (rete, a net) described, 399, 420 

 blood vessels of, 430 

 cells of, 419 et seg. 



distinguished from fibres of the optic nerve, 42y 

 formation of the image on the, 408 

 inverted image, 444 

 its sensibility soon exhausted, 426 

 nervous structure of. 421 

 pigmented epithelium of, 424 

 Retinal impressions corrected by sense of touch. 444 

 Rhytlimical (pv9/ib5, measured motion) pulsation of heart, 23, 50,51,73 

 Ribs. 14. 139, 142, 307 

 Ftigor mortis (stiffness of death), 297 

 Rod bipolar cell, 422 

 Rod-shaped cells of olfactory ner\-es, 366 

 Rods and cones, layer of. 406, 420 

 functions of, 429 

 Rods of Corti. 378. 387 

 Rolando, fissure of, 505. 528 

 Roots of spinal nerves, anterior and posterior, 456 

 Rotation of joints, 322 

 Rouleaux, red corpuscles collect in, 95 

 Round ligments, 321 

 Running, how effected, 329 



Sacrum, os (the sacred bone, because offered in sacrifice), 14 

 Saline matters, clotting retarded by, 1 12 



