654 



INDEX. 



Ulnar nerve, effects of compression of, 



379 



of division of, 382 

 Umbilical arteries, contraction of, 119 



vesicle, 582 



Understanding, relation of to cere- 

 brum, 420 



Unstriped muscular fibre, 456 

 Urachus. 587 

 Urate of ammonia, 363 



of soda, 362, 363 

 Urea, 359 



in blood, 76, 361 



chemical composition of, 360 



identical with cyanate of am- 

 monia, o60 



properties of, 360 



quantity of, 360 



in relation to muscular- exertion, 

 361, 474 



sources of, 361 

 Ureter, 350 



arrangement of, 355 

 Urethra, development of, 613 

 Uric acid, 362 



in blood. 76 



condition in which it exists in 

 urine, 362 



forms in which it is deposited, 

 363 



proportionate quantity of, 362 



source of, 363 



Urina sanguinis, pottis, et cibi, 357 

 Urinary bladder, action of, 355 



development of, 610 



evacuation of, a reflex act, 399 



hypertrophy of, 312 



regurgitation from prevented, 355 

 Urine, 354-367 



analyses of, 358 



animal extractive in, 364 



chemical composition of, 357 



chlorine in, 366 



color of, 356 



coloring matter of, 364 



creatin and oreatinin in, 364 



cystin -in, 367 



decomposition of by mucus, 364 



expulsion of, 356 



flow of into bladder, 355 



gases in, 367 



general properties of, 356 



hippuric acid in, 363 



mucus in, 364 



oxalic acid in, 367 



phosphorus in, 365 



quantity secreted, 357 



reaction of, 356 



made alkaline by diet, 356 



saline matters in, 365 



secretion of, 354 



Urine, secretion of, effects of posture, 



&c., on, 355 

 rate of, 355 

 specific gravity of, 356 

 sulphur in, 365 

 urea in, 359 

 uric acid in, 362 

 variations of, 356 



of water in, 359 

 Uterus, 562 



changes of mucous membrane of, 



591 

 contractions of its arteries, 119, 



120 



development of in pregnancy, 312 

 follicular glands of, 589 

 reflex action of, 400 

 simple and compound glands of, 



589 



structure of, 562 

 Utriculus of labyrinth, 533 

 Uvula in relation to voice, 486 



Vagina, structure of, 562 

 Vaginal veins of liver, 255 

 Vagus nerve. See Pneumogastric. 

 Valve, ileo-caecal, structure of. 250 



of Vieussens, 419 

 Valves of heart, 92 



action of, 99-105 



bicuspid or mitral, 92 



semilunar, 96 



tricuspid, 92 



of lymphatic vessels, 282 



of veins, 142 

 Valvulae conniventes. 240 

 Vas deferens, 573 

 Vasa efferentia, 354, 573 



recta, 354, 573 



vasorum, 115 

 Vascular area, 588 

 Vascular glands, 325 



analogous to secreting glands, 

 326 



in relation to blood, 329 



several offices of, 330-332 

 Vascular parts, nutrition of, 307 



system development of, 597 

 Vaso-motor nerves, 121, 452 

 Vaso-motor nerve-centre, 452 



reflection by, 453 

 Vascularity, degrees of, 134 

 Vegetable matters, absorption of, 347 

 Vegetable substances, digestion of, 



228 

 Vegetables and animals, distinctions 



between, 15 

 Veins, 88, 141 



absorption by, 293 



anastomoses of, 144 



