INDEX 



639 



Mouth, influence on nervous system, 459 

 origin of, 317 

 slit, 148 



Mucous tissue, 129 

 Mullerian ducts, 399, 413 



atrophy of, 417 

 Multiple placentae, no 

 Multiplicity, 597 

 Muscle fibers, change of direction of, 295 



theories concerning internal structure of, 



308 



heart, histogenesis of, 311 

 plates, 164, 294 



formation from primitive segment, 71 

 tissue, histogenesis of striated volun- 

 tary, 307 

 smooth, 311 



Muscles, branchiomeric, 302 

 differentiation of, 305 

 extrinsic, of the upper extremity, 

 anomalies of, 314 

 lattissimus dorsi, 305 

 levator scapulae, 305 

 pectoralis, 305 

 serratus, 305 

 trapezius, 305 

 innervation of, 294 

 of the extremities, 303 

 derivation of, 303 

 derivation from premuscle sheath of 



muscles of lower extremity, 306 

 differentiation from mesenchymal tis- 

 sue, 304 



extrinsic muscles, 305 

 migration of, 306 

 of the head, 300 

 chondroglossus, 303 



constrictor muscles of the pharynx, 303 

 development and innervation of, 302 

 digastricus, 302, 303 

 epicranius, 303 

 glossopalatinus, 303 

 laryngeal, 303 

 masseter, 302 

 mentalis, 303 



muscles of the soft palate, 303 

 mylohyoideus, 302 

 obliquus inferior, 302 



superior, 302 

 platysma, 303 



quadratus labii superioris, 303 

 recti inferior, 302 

 medialis, 302 



Muscles of the head, recti superior, 302 

 rectus lateralis, 302 

 pterygoidei, 302 

 risorius, 303 

 stapedius, 303 

 sternomastoideus, 303 

 stylohyoideus, 303 

 stylo-pharyngeus, 303 

 temporalis, 302 

 tensor tympani, 302 

 veil palatini, 302 

 trapezius, 303 

 triangularis, 303 

 of the trunk, 295 

 coccygeus, 300 

 geniohyoideus, 299 

 intercostales, 298 

 levator ani, 300 

 longus capitis, 298 

 longus colli, 298 

 olbiqui abdominis, 298 

 omohyoideus, 299 

 perineal, 300 

 psoas, 298 

 pyramidalis, 299 

 quadratus lumborum, 298 

 rectus abdominis, 299 

 capitis anterior, 298 

 sacrospinal, 300 

 scaleni, 298 



sphincter ani externus, 300 

 sternohyoideus, 299 

 sternothyreoideus, 299 

 transversus abdominis, 298 



thoracis, 298 



Muscular system, the, 293 

 amomalies of, 313 

 skeletal musculature, 293 

 visceral musculature, 293, 311 

 Musculature, hyoid, 302 

 skeletal, 293 



diaphragm, the, 300 

 early character of, 293 

 loss of segmental character, 294, 295 

 muscles of the extremities, 303 

 of the head, 300 

 of the trunk, 295 

 myotomic origin, 293, 300, 303 

 visceral, 311 



mesodermic origin of, 311 

 Myelencephalon (after-brain), 84, 455, 512 

 Myelin sheath, 478, 494 

 Myeloblasts, 177, 272 



