INDEX. 



823 



Tympanum, conti 



development of, 775- 



functions of, 684. 



membrane of, 635. 



structure of, ib. 



use of air in, 686. 

 Types of respiration, 207, 209. 



U. 



liberation of parts attending injuries 

 of nerves, 392, 548, 549. 



Ulnar nerve, 



effects of compression of, 481. 

 of division of, 484. 



Umbilical arteries, contraction of, 



ISO- 

 vesicle, 746. 



Understanding, relation of to cere- 

 brum, 534. 



Unstriped muscular fibre, 582. 



Urachus, 750. 



Urate of ammonia, 459. 

 of soda, 458, 459. 



Urea, 454. 



in blood, 91, 457. 



chemical composition of, 455. 



identical with cyanate of ammonia, 



455- 



properties of, 455. 



quantity of, 456. 



in relation to muscular exertion, 

 457, 604. 



sources of, 456. 

 Ureter, 443. 



arrangement of, 449. 

 Urethra, development of, 784. 

 Uric acid, 459. 



in blood, 91. 



condition in which it exists in 

 urine, 459. 



in expired air, 229. 



forms in which it is 

 460. 



proportionate quantity of, 458. 



source of, 459. 



Urina sanguinis, potus, et cibi, 451. 

 Urinary bladder, action of, 449. 



development of, 781. 



evacuation of, a reflex act, 506. 



hypertrophy of, 397. 



regurgitation from prevented, 649. 

 Urine, 448-65. 



analyses of, 453. 



animal extractive in, 461. 



Urine, continued. 



chemical composition of, 452. 



chlorine in, 464. 



colour of, 450. 



colouring matter of, 461. 



cystin in, 464. 



decomposition of by mucus, 461. 



expulsion of, 450. 



flow of into bladder, 449. 



gases in, 465. 



general properties of, 450. 



hippuric acid in, 460. 



kreatin and kreatinin in, 462. 



mucus in, 461. 



oxalic acid in, 464. 



phosphorus in, 463. 



quantity secreted, 452. 



reaction of, 450. 



made alkaline by diet, 451. 

 saline matters in, 462. 

 secretion of, 448. 



effects of posture, etc., on, 449. 



rate of, ib. 



specific gravity of, 451. 

 sulphur in, 462. 

 urea in, 454. 

 uric acid in, 458. 

 variations of, 451. 



of water in, 454. 

 Urohsematin, 461. 

 Uterus, 717. 



changes of mucous membrane of, 



754- 



contractions of its arteries, 150. 

 development of in pregnancy, 397. 

 follicular glands of, 754. 

 reflex action of, 507. 

 simple and compound glands of, 



755- 



structure of, 717. 

 Utriculus of labryinth, 679. 

 Uvula in relation to voice, 619. 



V. 



Vagina, structure of, 718. 

 Vaginal veins of liver, 323. 

 Vagus nerve. See Pneumogastric. 

 Valve, ileo-ca3cal, structure of, 317. 



of Vieussens, 532. 

 Valves of heart, 114. 



action of, 122-29. 



bicuspid or mitral, 115. 



semilunar, 118. 



tricuspid, 115. 



