INDEX 601 



Tube, Eustacliian, 229, 370, 392 

 Tubules of kidney, 178 et seq. 



collecting, 180 



convoluted, 179, 180 



spiral, 179 



zigzag, 180 

 Tuning fork, vibrations of, 384 

 Turbinal (turbo, I whirl) bones, 230, 363, 364, 416 

 Tympanic muscle, 371, 389 

 Tympanum (TVfj.wavov, a drum) of ear, 368 et seq. 

 Tyrosine, 360 



Ulna (uikev-q, the elbow), articulation of, 322 

 Uncomfortableness, sense of, 343 

 Unstriated muscular fibre, 288 



in alimentary canal, 303 

 in bladder, 177 

 in coat of arteries, 32 

 in fibres of iris, 303, 402 

 structure of, 288 

 Urea (oupor, urine), excreted by kidneys, 6, 24,171, 269 

 chemistry of, 183 et seq. 

 history of, 185, 188 

 weight of, passed per diem, 565 

 Ureters, 9, 176 

 Urethra, 177 

 Uric acid, 184 



Urine, average amount excreted daily, 184 

 composition of, 183 



secretion of, influenced by state of skin, 187 

 Utricle (a small bag) of ear, 391 et seq. 

 Uvula (dim. of uva, a grape), 229 



Vagus (wandering) or pneumogastric nerve, 73, 501, 516 



stimulation of, 159 

 Valve of Vieussens, 504 

 Valves in arteries, 38, 85 



course of circulation governed by, 78, 166 

 ileo-ca?cal, 251 

 of heart, 45 et seq. 

 in lymphatics, 85 

 in veins, 35, 36, 85, 166 

 Valvulse conniventes, 255 

 Varnish, result of covering the skin with, 200 

 Varolii, pons, connection of, with cerebellum, 500, 503, 506 

 Vascular membrane, 453 



system, 30 et seq. 

 Vaso-constrictor nerve, 68 

 -dilator nerves, 70 



impulses, effect of perspiration on, 201 

 -motor centres, in spinal cord. 69, 70, 494, 519 

 nerves, 65, 67, 205, 494 



ultimately traceable to spinal cord, 494 

 Veins, 23 et seq. 



coUapse when empty, 34 



