398 



INDEX 



Pronucleus, 28, 29 

 Prosencephalon, 54, 325 

 Prostate gland, 235 

 Pyramidal cells, 349 

 Pyramids, 333 

 of kidney, 209 



Quadrate lobe of liver, 201 



Ramus communicans, 352, 364 

 Rathke's pocket, 67, 169 

 Receptaculum chyli, 287 

 Recess, lateral, 331 

 Rectum, 127, 143, 152 

 Reduction of chromosomes, 27 

 Reference, titles for, 15 

 Regression, 14 

 Renal anomalies, 213 



arteries, 213 



columns, 209 



corpuscles, 206, 207 



cortex, 209 



papillae, 209 



pelvis, 207 



pyramids, 209 



tubules, 208 

 Respiratory epithelium, 291 

 Rete ovarii, 221, 225 



testis, 220 

 Reticular formation, 332 



tissue, 292 

 Retina, 378 



Rhinencephalon, 147, 327, 339, 344 

 Rhombencephalon, 54, 89, 325 

 Rhombic lip, 332 

 Rhomboidal sinus, 49, 54, 67 

 Ridge, pulmonary, 193 

 Roots of spinal nerves, 139 



Sacculus, 383 



Saccus vaginalis, 231 



Scalar, 386 



Sclerotome, 291 



Scrotum, 234 

 ligament of, 230 



Sections, chick, fifty-hours, 69 

 thirty-six-hours, 57 

 twenty-five-hours, 50 

 pig, 6 mm., in 

 10 mm., 132 



Seessel's pocket, 89, 101, 169 



Segmental zone, 73 



Segmentation of ovum, 33 

 Amphioxus, 33 



fr °g, 34 

 mammals, 36 

 reptiles and birds, 35 

 Segments, primitive, 119. See Mesodermal seg- 

 ments 

 Seminal vesicle, 226 

 Sense organs, chick, 54, 66 

 human, 368 

 pig, 122 

 Septum, dorsal median, 321 



interatrial, 259 



interventricular, 264 



membranaceum, 267 



nasal, 372 



pellucidum, 344 



primum, 106, 260 



secundum, 260 



spurium, 128, 262 



transversum, 91, 114, 140, 152, 188, 191 

 Sex, determination of, 31 

 Sheath, medullary, 316 



mitochondria, 22 



myelin, 316 



neurilemma, 316 

 Sinus, cavernous, 133, 279 



cervical, 97 



coronary, 279 



frontal, 373 



lateral, 279 



maxillary, 373 



petrosal, 279 



rhomboidal, 49, 55 



sphenoidal, 373 



superior sagittal, 279 



urogenital, 85, 127, 142, 213, 218, 234 



venosus, 67, 137, 257, 261 

 Sinusoids of liver, 67, 184, 276 

 Somatopleure, 42, 63 

 Somites. See Segments 

 Spermatic cord, 232 

 Spermatid, 26 

 Spermatocyte, 24 

 Spermatogenesis, 24 

 Spermatogonia, 24, 221 

 Spermatozoon, 21 

 Spinal cord, 320 

 Spireme, 23 



Splanchnopleure, 42, 63 

 Spleen, 200, 288 

 Spongioblasts, 311 

 Stapes, 387 

 Stoerck's loop, 212 

 Stomodamm, 67 



