630 



INDEX 



Bladder (see also Urinary Bladder], 370 



anomalies of, 401 

 Blastema, metanephric, 362 

 Blastemal stage, 148 

 Blastoccel, 38. 39, 54, 55, 68, 107 

 Blastocyst, 87, 90, 91, 108 

 Blastoderm, 68, 69, 70, 71, 72, 75 

 Blastodermic vesicle, 87, 108 

 Blastomeres, 



of Amphioxus, 36, 37 



in the chick, 67, 68 



of the frog, 52, 53 



in Mammals, 85 

 Blastopore, 



in Amphioxus, 39 



in the chick, 70, 71, 72, 73, 76 



in the frog, 56, 57, 59 

 Blastula, 37, 38, 54, 55 

 Blood, cells of, 236 



' relation of maternal and fcetal blood in 



Mammals, 577 

 in man, 583, 595 

 Blood cells, development of, 236 



erythroblasts, 239 



erythrocytes, 239 



haemoblasts, 237 



histogenesis of, 236 



leucocytes, 239 



lymphoblasts, 237 



lymphocytes, 239 



megaloblasts, 239 



mesamoeboid, 238 



mononuclear leucocytes, 239 



normoblasts, 239 



primitive, 186, 237 

 lymphocytes, 237, 238 



table showing development of, 242 

 Blood islands, 78, 186, 237 

 Blood plates, 242 

 Blood vascular system, 185 

 Blood vessels, allantoic, function of, 572 



arteries, 209 



factors in development of, 195 



heart, 196 



origin of, 193 



placental, 595 



sinusoids, 229 



veins, 219 

 Blue babies, 256 



Body, age, length and weight of, 122 

 Body cavity, see Coelont 

 Bone, compact, 140 



diaphysis of, 144 



Bone, epiphysis, 144 



growth of, 144 



intracartilaginous, 140 



shaft of, 144 



spongy, 139 



subperiosteal, 140 

 Bone cells, 139 



destroyers, 139 



formers, 139 



marrow, 145 

 Bones, defective or absent, 619 



derived from the branchial arches, 162 



membrane, of the skull, 160 

 Bonnet, concerning derivation of pigmented 

 layer of retina, 547 



concerning double origin of vitreous, 545 



concerning origin of parasitic duplicity, 



611 



Born, concerning potentiality of germ cells, 612 

 Bowman, membrane of, 548 

 Bowman's capsule, 347, 365 

 Brachia, anterior. 500, 503 

 Brain, the, 112, 423, 443 



after-brain (myelencephalon), 425 



aquaeductus Sylvii, 426 



archencephalon, 423 



cephalic flexure of, 424 



cerebellum, 425, 447, 482, 495 



corpora striata, 425, 437, 444, 448, 509, 511 



defects in, 612, 613 



deuterencephalon, 423 



diencephalon, 425, 437, 444, 448, 501 



distinguishing features of human and 

 their biological significance, 438, 440 



end-brain (telencephalon), 425 



epichordal part of, 423, 427 

 segmental, 482 



fore-brain (prosencephalon) , 424 



hind-brain (metencephalon) , 425 



inter-brair, (diencephalon), 425 



isthmus, 425, 483 



medulla oblongata, 447, 482 



mid-brain (mesencephalon), 424 



plica encephali ventralis, 423 



plicarhombo-mesencephaiica, 445 



prechordal part, 423, 427 



rhinencephalon, 425, 437, 475, 507, 510 

 to 511 



rhombic (rhombencephalon) , 424 



rhombo-mesencephalic fold of, 424 



segmental, 427 



character of, 426, 427 



telencephalon, 425, 437, 508 to 531 



