820 



IXDEX. 



Tooth-ache, radiation of sensation 



in, 486. 

 Tooth-fang, 50. 



absorption of, 379. 

 Tooth-pulp, 51, 52, 55. 

 Touch, 706. 



after-sensation of, 711. 

 characters of external bodies as- 

 certained by, 707. 

 conditions for perfection of, 708. 

 connection of with muscular 



sense, 709. 



co-operation of mind with, 711. 

 function of cuticle with regard 



to, 426. 

 of papillae of skin with regard 



to, 424. 



the hand an organ of, 708. 

 modification of, 708. 

 a modification of common sen- 

 sation, 623, 706. 

 special organs of, 707. 

 subjective sensation of, 712. 

 the tongue an organ of, 704. 

 Touch- corpuscles, 423, 471. 

 Trachea, 99. 



structure of, 188. 

 Tracts of medulla oblongata, 509. 

 of mucous membrane, 398. 

 of spinal cord, 490. 

 Tradescantia Virginica, move- 

 ments in cells of, 20. 

 Tragus, 671. 

 Transference of impressions, 485, 



499- 



Transplanted skin, sensation in, 48 1 . 

 Tricuspid valve, 105. 



safety-valve action of, 115. 

 Trigeminal or fifth nerve, 543. 



effects of injury of, 388, 546. 

 Trochlearis nerve, 541. 

 Trophic nerves, 388, 475. 

 Tube, Eustachian, 687. 

 Tubes, Fallopian. See Fallopian 

 tubes. 



looped, of Henle, 442. 

 Tubular glands, 401. 



convoluted, 403. 



simple, 401. 



of intestines, 310. 



of stomach, 268. 



Tubules, general structure of, 28. 

 Tubuli seininiferi, 732. 



uriniferi, 441. 



Tunica albuginea of testicle, 731. 

 Tynpanum or middle ear, 673 . 



development of, 773. 



functions of, 683. 



membrane of, 673. 



structure of, ib. 



use of air in, 685. 

 Types of respiration, 198. 



U. 



Ulceration of parts attending in- 

 juries of nerves, 386, 547, 548. 



Ulnar nerve, 



effects of compression of, 479. 

 of division of, 482. 



Umbilical arteries, contraction of, 



1.39. 



vesicle, 745. 



Understanding, relation of to cere- 

 brum, 533. 



Unstriped muscular fibre, 581. 

 Urachus, 749. 

 Urate of ammonia, 458. 



of soda, 457, 458. 

 Urea, 452. 



in blood, 83, 455. 



chemical composition of, 453. 



identical with cyanate of am- 

 monia, 453. 



properties of, 453. 



quantity of, 454. 



in relation to muscular exertion, 

 455, 603. 



sources of, 454. 

 Ureter, 441. 



arrangement of, 447. 

 Urethra, development of, 782. 

 Uric acid, 456. 



in blood, 83. 



condition in which it exists in 

 urine, 457. 



forms in which it is deposited, 



457- 



proportionate quantity of, 457. 



source of, 457. 

 Urina sanguinis, potus, et cibi, 



449. 

 Urinary bladder, action of, 447. 



development of, 779. 



evacuation of, a reflex act, 505. 



hypertrophy of, 392. 



regurgitation from prevented, 447 



