4o6 



INDEX 



Ossification of ulna, 316 



of vertebrae, 310 

 Osteoblasts, 158, 287, 288 

 Osteoclasts, 288 

 Ostium abdominale, 2 1 1 



.vaginae, 221 

 Otic ganglia, 368 



vesicle, 47 



Otocyst, 47, 57, 62, 82, 94, 385 

 Ovarian arteries, 266 



pregnancy, 231 



vein, 275 

 Ovary, 215 



anomalies, 218 



compared with testis, 218 



descent of, 223 



mediastinum, 215 



proper ligament of, 222 



septula, 215 



stroma of, 216 

 Ovulation, 10 



Ovum, cleavage of, 24. See also Cleavage of 

 ovum. 



human, 7 



fertilization of, 21 



implantation of, 231 



isolecithal, 24 



maturation of, 14, 17, 18 



mouse, fertilization of, 20 



segmentation of, 24. See also Cleavage of 

 ovum. 



structure of, amphibian, 7 

 bird, 7 

 monkey, n 



telolecithal, 24 



PALATE bones, 315 



cleft, 151 



development of, 148 



premaxillary, 373 



primitive, 373 



soft, 150 

 Palatine processes, lateral, 148 



tonsil, 84, 1 20, 163 

 Pallium of cerebral hemispheres, 329 



of cerebrum, 341 

 Pancreas, alveoli of, 180 



human, 83, 179 



accessory duct of, 180 

 anomalies of, 180 



islands of, 180 



pig, 98, 122 

 Pancreatic duct, 180 

 Papillae, dental, 154, 156 



hair, 295 



of tongue, 153 



renal, 202 

 Papillary ducts, 202 



muscles, 258 

 Paradidymis, 200, 219 

 Parathyreoid gland, 84, 120, 165 

 Paraurethral ducts, 228 

 Parietal pleura, 170 

 Parietals, 314 



Parieto-occipital fissure, 351 

 Parolfactory area, 346 

 Paroophoron, 200, 219 

 Parotid glands, 153 



Pars caeca, 381 



ciliaris, 381 



intermedia, 340 



iridis retinae, 381 



lateralis of sacrum, 311 



optica, 381 



hypothalamica, 339 



radiata, 203 



tuberalis, 340 



Parthenogenesis, artificial, 20 

 Patella, ossification of, 316 

 Peduncles of cerebrum, 338 

 Pelvis, renal, 200, 202 

 Penis, 145 



Perforated space, 346 

 Pericardial cavity, 49, 55, 1 80, 182 

 chick, 55, 62 



membrane, 188 



Perichondral bone formation, 288, 289 

 Perichondrium, 286 

 Peridental membrane, 158 

 Periderm, 293 

 Perilymph space, 387 

 Periosteal bone formation, 288 



lamellae, 289 

 Periosteum, 288 

 Periotic capsule, 312 

 Peripheral lymphatics, 279 



nervous system, 353 

 i sinus, 280 

 Peritoneal cavity, 55, 188 

 chick, 55 



mesothelium, 172 



sac, 136 



lesser, 135^36, 190 

 Peritoneum, 135 



Permanent teeth, development of, 158 

 Peroneal artery, 268 



nerve, 356 

 Petrosal ganglion, 94, 118, 364 



nerve, superficial, 118, 363 



sinus, 273 

 Pfliiger's tubes, 216 

 Phalanges, ossification of, 316 

 Phallus, 145, 225 

 Pharyngeal bursa, 164 



membrane, 44, 47, 48, 82, 161 



plate, 44 



pouches, 47, 62, 96, 119, 162 



tonsil, 164 



Pharyngopalatine arches, 150 

 Pharynx, human, 83 



muscles of, 320 



pig, 95, 118 

 Philtrum, 148 

 Phrenic artery, 266 



nerve, 355 

 Pia mater, 128 

 Pig embryos, 114 

 6 mm., 91 

 10 to 12 mm., 114 

 dissection of, 139 

 transverse sections of 6 mm., 105 

 of 10 mm., 127 



fetal membranes, 70 

 Pigment granules, 294 



layer of retina, 128, 377, 381 

 Pillars, anterior, of fornix, 347 



