Ind 



ex 



Page numbers set in italics refer to illustrations in the text. Also consult the Glossary 

 for specialized terms. 



Acetabulum, 218 



Activation, 73, 77 



Adelmann, H. B., 8 



Adrenal cortex {syn. interrenal gland), 



224, 225 

 Adrenal gland, 42, 222, 223, 224, 224 

 medulla of, 138, 189 

 medullary cords of, 224 

 Stilling cells of, 224 

 Adrenal tissue, 220 

 Aggregation, cell, 104 

 Albumen (see Jelly) 

 Amhlystoma punctatuin, 106, 107 

 Amphiaster, 87 



Amphimixis (syn. syngamy), 73, 88 

 Amphioxus, 10, 76 

 Amplexus, 19, 41, 73, 74, 75, 222 

 Ampulla, 177 



Anal plate (see under Plate) 

 Anaphase, 69 

 Annulus tympanicus (syn. tympanic ring), 



178, 215, 216, 252 

 Anura, 17,41, 73,230 

 Anus (see also Proctodeum), 22, 23, 164, 



205, 206 

 Aorta, descending (see Systemic trunk) 

 dorsal, 147, 149, 152, 168, 188, 198, 

 234, 236, 237, 238, 239, 240, 

 248,251 

 radix, 243 



ventral (syn. truncus arteriosus), 234, 

 234,216,237,238,24^ 

 Appendix, lateral, 779, 180, 182, 244, 253, 



259 

 Arch, aortic, 133, 134, 148, 149, 150, 151, 

 152, 164, 195, 196, 236, 237, 

 239, 240, 245 

 branchial, 131, 132, 144, 237 

 hyoid, 131, 133, 144, 148, 150, 195 



Arch — ( Continued) 



mandibular, 132, 133, 144, 148, 158, 

 165, 195 



mesodermal, 144, 195, 196 



neural, 213 



systemic, 239 



vertebral, 212 



visceral, 131, 133, 148, 149, 158, 195, 

 195, 216, 251 

 Archenteron (syn. primitive gut; primary 

 embryonic cavity; intestine; gas- 

 trocoel) (see also Gut), 20, 

 113, 114, 115, 116, 118, 119, 

 120, 121,123,125, 133,135 

 Aristotle, 4 

 Aronson, L., 40 



Arterial system (see under System) 

 Artery, basilar, 243 



branchial, 158, 236, 237, 243, 248 



caudal, 164, 187, 248 



coeliac, 240 



commissural, 243 



cutaneous, 243 



external carotid, 149, 238, 238, 239 



gonadal, 240 



iliac, 240 



internal carotid (anterior cerebral), 

 148, 149, 164, 238 238, 243 



intersegmental, 248 



laryngeal, 240 



lingual (visceral I), 243 



lumbar, 240 



mesenteric, 248 



oesophageal, 240 



ophthalmic, 239 



palatine, 239 



pulmo-cutaneous, 238, 239, 240, 243 



pulmonary, 238, 243 



renal, 240 



spinal, 169 



321 



