8o6 



A MANUAL OF VETERINARY PHYSIOLOGY 



Urobilin, 14, 331 

 Urochrome, 331 

 Uterine milk, 72 1 

 Uterus, 703 



oestral changes in, 

 Utricle, 581 



Vagina, absorption by, 282 

 Vago -sympathetic nerve, 52 

 Vagus and respiration, 127, 134, 148, 



521 

 unction of, 51, 52, 514, 519, 525, 



526 

 See also Pneumogastric nerve 



and Tenth pair 

 Valine, 752 

 Vallate papillae, 567 

 Valves of heart. See Heart 

 Variations in body temperature, 



374 

 Vaso-constrictor nerves, 83, 84, 527, 

 528 



dilator nerves, 83, 84, 85, 89, 

 93, 528 



See also Nerves, Vasomotor 

 Vasomotor centre, 57, 84, 85, 89, 

 472, 477 



nerves, 83. See also Nerves 



subcentres, 88 

 Vegetable proteins, 755 

 Veins, 63 



blood -pressure in, 72 



See also Bloodvessels 

 Velocity of reaction, 763 



of the blood, 80 

 Venesection, 25 

 Venous pulse, 64, 75 

 Ventilation of lungs, 120 

 Ventricles of brain, 474, 519 



heart. See Heart 

 Veratrine curve, muscle, 398 

 Vermis, cerebellum, 476 

 Vesical calculus, 342 

 Vesico-spinal centre, 341, 472 

 Vesicular murmur, 143 

 Vestibular nerve, 581 

 Vestibule, 577 

 Villi, 278 

 Vision, binocular, 549 



centre for, 500, 541 



monocular, 549, 550 



panoramic, 549, 553 



theory of, 560 



See also Eye 

 Visual angle, 560 



axis, 539 



purple, 539, 561 

 Visuo-psychic area, 541 



sensory area, 541 

 Vitellin, 754 



Vitreous humour, 532, 538 

 Vocal cords, 145 



innervation of, 150 

 movements, 147 

 production of voice, 149 

 Voice, pitch of, 149 

 quality of, 149 

 See also Larynx 

 Volume, pulse, 77 

 Vomiting, 202, 203, 477. See also 



Stomach 

 Vortices, hair-streams, 301 



Wallerian degeneration, 438 



Wall-eyed horses, 305 



Wall-secreting body, 661 



Walk, the , 620 . See also Locomotion 

 speed of, 620, 650 

 stride of, 623, 650 



Water, absorption of, 281, 290 

 amount required, 365, 574 

 importance of, 362, 574 

 in tissues, 343, 362, 748 

 loss of, 334, 343, 362, 573 



Watering horses, 181 



Weather warnings by cattle, 360 



Weber's paradox, 403 



Weight horse should carry, 648 

 draw, 647 

 how carried by foot, 674 

 See also Locomotor System 



Weismann's theory, 732 



Whartonian jelly, 713 



Whey, 190 



Whinny of horse, 1 50 



White corpuscles, 14 

 legs, 304 



Women, tolerance of cold, 383 



Work, amount of, 641 



influence on respiration, 142 

 See also Locomotor System 



Xanthine, 326, 339, 418, 755 

 Xantho -protein reaction, 755 

 X-ray experiments, stomach, 208 



Yawning, 151 

 Yellow spot, 539 

 Yolk sac, 707 



spherules, 697 



Zebra, duration of pregnancy, 722 



Zein, 753, 755 



Zona pellucida, 697 



Zonule of Zinn, 538 



Zygote, 733 



Zymogen, 171, 186, 764 



