658 



INDEX. 



Mouth, origin of, 318 



practical suggestions for study of, 3 59 

 Mouth slit, i 52 

 Mucous tissue, 133 

 Mulberry mass, 49 

 Miillerian ducts, 402, 417 



atrophy of, 421 

 Multiple placentas, 114 

 Multiplicity, 61 1 



Muscle, heart, histogenesis of, 311 

 Muscles, differentiation of, 305 

 innervation of, 294 

 practical suggestions for study of, 315 

 of the extremities, 303 

 derivation of, 303 



derivation from premuscle sheath of 



muscles of lower extremity, 306 



differentiation from mesenchymal 



tissue, 304 



extrinsic muscles, 305 

 migration of, 306 

 of the head, 300 



chondroglossus, 303 



constrictor muscles of the pharynx, 



33 

 development and innervation of, 



3 2 . 

 digastncus, 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 



superior, 302 

 rectus lateralis, 302 

 pterygoidei, 302 

 risorius, 303 

 stapedius, 303 

 sternomastoideus, 303 

 stylohyoideus, 303 

 stylo-pharyngeus, 303 

 temporalis, 302 

 tensor tympani, 302 

 tensor veli 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 

 obliqui abdominis, 298 

 omohyoideus, 299 

 perineal, 300 

 psoas, 298 

 pyramidalis, 299 

 quadratus lumborum, 298 



Muscles, rectus abdominis, 299 



capitis anterior, 298 

 sacrospinal, 300 

 scaleni, 298 



sphincter ani externus, 300 

 sternohyoideus, 299 

 sternothyreoideus, 299 

 transversus abdominis, 298 



thoracis, 298 

 branchiomeric, 302 

 extrinsic, of the upper extremity, 

 anomalies of, 314 

 lattissimus dorsi, 305 

 levator scapulas, 305 

 pectoralis, 305 

 serratus, 305 

 trapezius, 305 



Muscle fibers, change of direction of, 295 

 practical suggestions for study of, 



3 I 5 



theories concerning internal struc- 

 ture of, 308 

 plates, 294 



formation from primitive segment, 



75 



tissue, histogenesis of striated volun- 

 tary, 307 

 practical suggestions for study of, 



3 T 5 



smooth, 311 



Muscular system, the, 293 

 amomalies of, 313 



practical suggestions for study of, 314 

 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, 3 1 1 

 Myelencephalon (after-brain), 88, 462, 



5 I 9 



Myelin sheath, 485, 501 

 Myelocystocele, 618 

 Myelocytes, 182 



Myelogenetic fields (areas) of Flechsig, 565 

 Myelomeningocele, 618 

 Myeloplaxes, 181 

 Myelospongium, 486, 490 

 Myoblasts, 303, 307 

 Myocardium, 224, .311 

 Myoccel (coelom), 75, 372 

 Myotomes, 167, 294 



alternation of, with vertebras, 184, 



295 



change of direction in fibres of, 295 

 degeneration of, 295 

 differentiation of, 295 

 fusion of, 295, 314 

 longitudinal splitting of, 295, 314 



