400 
Thoracic aorta, 284 
duct, 303 
vertebra, 49 
Thread cells, 29 
Thymus glands, 245 
Thyreoid cartilage, 252 
gland, 246 
Thyrohyals, 102 
Tibia, 116 
Tibiale, 117 
Tibial artery, 288 
Tibio-tarsus, 119 
Tissue, 16 
Tongue, 217 
Tonsils, 247, 307 
Trabecula cranii, 61 
communis, 61 
Trachea, 250, 254 
Tractus olfactorius, 142, 167 
solitarius, 150 
Transverse bone, 88 
muscles, 130 
process, 46, 55 
Transverso-spinal muscles, 131 
Trapezium, 117 
Trapezius muscle, 132 
Trapezoides, 117 
Triconodont, 214 
Tricuspid valve, 281 
Trigeminal nerve, 170 
Triquetrum, 117 
Tritubercular, 214 
Trochanter, 120 
Trochlearis nerve, 170 
Tropibasic skull, 61 
Truncus arteriosus, 272 
transversus, 271 
Trypsin, 234 
Tuber acusticum, 145 
Tubular glands, 18 
Tubercular head of rib, 54 
Tuberculum impar, 217 
Tunica albuginea, 341 
serosa, I2I 
vasculosa of eye, 201 
Tunicata, « 
Turbinal bones, 67, 100, 195 
Turtles, armor of, 41 
’T wixt-brain, 142, 148 
Tympanic annulus, 82 
bone, 100 
membrane, 187 
Tympanum of ear, 187 
of syrinx, 255 
Ulna, 116 
Ulnare, 117 
Ulnar artery, 288 
lymph duct, 303 
Umbilical artery, 285, 
cord, 351 
veins, 278 
vesicle, 348 : 
INDEX. 
Umbilicus of feather, 31 
Unguis, 27 
Unguligrade, 120 
Uncinate bone, 97 
Unicellular glands, 18 
Uniserial fin, 115 © 
Upper jaw, 70 
Ureter, 318 
Urethra, 319, 331 
Urinary bladder, 318 
organs, 307 
Urocyst, 318 
Urogenital sinus, 322 
system, 307 
Urohyal, 80, 97, 218 
Uropygial glands, 30 
Urostyle, 52 
Uterus, 338 
masculinus, 342 
Utriculus, 183 
Uvea, 202 
Vagina, 338 
Vagus nerve, 175 
Valve, ileocecal, 228 
ileo-colic, 228 
of Vieussens, 145 
spiral, 228 
Vas efferens, 321 
Vasa deferentia, 321 
Vascular cells, 270 
Vater’s corpuscle, 179 
Veins, 266, 276, 289 
abdominal, 289 
advehent, 291 
allantoic, 350 
anterior abdominal, 289 
cardinal, 279 
axillary, 290 
azygos, 302 
brachial, 290 
branchial, 274 
caudal, 276 
central retinal, 201 
cephalic, 290 
common iliac, 289 
cutaneus magnus, 290 
epigastric, 289 
femoral, 290 
hemiazygos, 302 
hepatic, 277 
hypogastric, 290 
iliac, 289 
inferior jugular, 278 
innominate, 300 
internal iliac, 290 
interrenal, 291 
ischiadic, 290 
jugular, 279 
lateral abdominal, 289 
omphalomesaraic, 271 
omphalomesenteric, 271 
portal, 277 
