404 



INDEX 



Muscles, sphincter, ot iris, 383 



stapedial, 390 



sterno-cleido-mastoid, 364 



thoraco-abdominal, 317 



trapezius, 364 



voluntary, 52 

 Muscular system, 316 

 Musculocutaneous nerve, 356 

 Myelencephalon, 80, 92, 115, 328, 330, 332 

 Myelin, 306 



development of, 326 



sheath, 306 

 Myelocytes, 245, 246 

 Myoblasts, 292, 293 

 Myocardium, 42, 98, 249, 259 

 Myofibrils, 293 

 Myotomes, 2, 292 



changes in, during formation of adult muscles, 

 317 



chick, 51 



Nail fold, 298, 299 



human, 298 

 Naris, external, 373 

 Nasal bone, 314 



meatus, inferior, 376 



passages, 374 



processes, 145, 372, 373 



septum, 313, 373 

 Naso-lacrimal duct, 384 

 Naso-turbinal anlage, 376 

 Navel, 70 



Neck, muscles of, 317 

 Neopallium, 346 

 Nephrogenic cords, 197, 201 



tissue, 120, 136, 202 

 Nephrostome, 195 

 Nephrotome, 195 



chick, 40, 52, 64 

 Nerve, abducens, 116, 361 



accessorius, 116 



acoustic, 92, 116, 358 



auditory, 358 



axillarv, 356 



cells, 300 



cerebral, 115, 357 



facial, 92, 116,362,363 



femoral, 356 



fibers, 300 



cell-chain theory of development, 306 

 layer, 382 



glossopharyngeal, 93, 116, 362, 364 



hypoglossal, 93, 116, 151, 360 



mandibular, 116, 361 



maxillary, 116, 361 



median, 356 



motor somatic, 360 



musculocutaneous, 356 



obturator, 356 



oculomotor, 92, 115, 330, 360 



olfactory, 357 



ophthalmic, 116, 361 



optic, 115, 358, 383 



peroneal, 356 



petrosal, superficial, 116, 363 



phrenic, 355 



radial, 356 



recurrent laryngeal, 264 



Nerve, sciatic, 356 



sensory, somatic, 357 



somatic, motor, 360 

 sensory, 357 



spinal, 116, 353 

 accessory, 93, 116, 364 

 efferent or ventral root fibers of, 302 



terminal, 358 



tibial, 356 



trigeminal, 92, 116, 361 



trochlear, 116, 330, 361 



ulna, 356 



vagus, 93, 116, 362, 364 



visceral mixed, 361 

 Nervous layer of retina, 126 



system, 91, 114 

 central, 321 

 chick, 44, 55 

 human, 80, 321 

 peripheral, 353 

 sympathetic, 366 



tissue, histogenesis of, 300 

 Neural crest, 50, 93, 304 

 chick, 41 



folds, 38, 40 



groove, 38, 300 



plate, 300 



tube, 38, 40, 64, 300, 332 

 anomalies of, 352 

 origin of, 29, 30 

 supporting cells of, 307 

 Neurenteric canal, 31, 32, 33, 76 

 Neurilemma, 306 

 Neuroblasts, 302 



differentiation of, into neurones, 302 



of retina, 382 

 Neurofibrillae, 304 

 Neuroglia cells, 300, 302, 307, 308 



fibers, 300, 302, 307, 308 

 Neurokeratin, 306, 308 

 Neuromeres, 44, 104, 115, 334 

 Neurones, 302 



afferent, 305 



differentiation of neuroblasts into, 302 



theory, 305 

 Neuropores, 40, 321 



anterior, 43 

 Neutrophiles, 246 

 Nipple, 298 _ 

 Node, primitive (of Hensen), 51 



of Ranvier, 306 

 Nodose ganglion, J 16 

 Nodulus cerebelli, 337 

 Normoblasts, 244 

 Nose, 371 

 Notochord, 33, 38, 309 



chick, 40, 64 



origin of, 29, 35 

 Notochordal canal, 33 



plate, 31, 32, 37, 38 

 Nuclear zone, 302 

 Nuclei pulposi, 35, 309 

 Nucleolus, 7 

 Nucleus ambiguus, 364 



caudate, 345 



cuneatus, 335 



dentate, 337 



gracilis, 335 



lenticular, 345 



