OCR Text |
Show 1869.] THE MYOLOGY OF MENOPOMA. 269 perhaps be thus named. It is thickest posteriorly, and arises from the whole length of the much prolonged pubo-ischiatic symphysis. It is inserted into the postero-peroneal surface of the upper half of the tibia. The adductor (figs. 10 & 11, A) is a very thick mass of muscle which arises from the whole ventral surface of the pelvic shield between the acetabulum and the pubo-ischiatic symphysis, and is covered by the gracilis. It is inserted into the postero-tibial surface of the femur down to the intercondyloid space, where its insertion is widest. Semitendinosus (figs. 7, 8, 9, 10, & 11, S. T). A muscle I venture, suggestively, thus to designate, arises from the postero-external angle of the ischium, just at the insertion of the ischio-caudal. It is inserted, passing downwards, into the outside of the lower part of the flexor longus digitorum, on its plantar surface. A little after leaving the ischium it is joined by the before described semimembranosus. Fig. 9. Deeper muscles of dorsal or extensor surface of right pelvic limb, the gluteus maximus, rectus femoris, and extensor longus being cut and reflected. B. Biceps. E. B. Extensor brevis. E. H. Extensor hallucis. E. L. D. Extensor longus digitorum. F. C. Femoro-caudal. G. Md. Gluteus medius. G. Mi. Gluteus minimus. G. Mx. Gluteus maximus. I. Iliacus. 11. C. Ilio-caudal. /. P. Ilio-peroneal. R. F. Rectus femoris. S. M. Semimembranosus. S. T. Semitendinosus. T. A. Tibialis anticus. Iliacus (figs. 7, 8, 9 & 10, /). This is a very considerable muscle, and arises from the anterior part of the internal (abdominal) surface of the pubic shield. Curving over the anterior margin of that shield, it is inserted into the lower two-thirds of the femur, down to the tibial condyle; but no fibres extend to the tibia itself. |