OCR Text |
Show 1870.] MYOLOGY OF CHAMAELEON PARSONII. 883 gastrocnemii are inserted, and which gives origin to the flexor brevis hallucis. The tendons, however, are superficial to the insertion of the tibialis posticus. Lumbricales (fig. 29). There appear to be four of these. The first from the tibial side of the fifth flexor tendon to the peroneal side of the fourth digit. The second from the tibial side of the fourth flexor tendon to the tibial side of the fourth digit. The third from the peroneal side of the third flexor tendon to the peroneal side of the third digit. The fourth from the tibial side of the third flexor tendon to the tibial side of the third digit. Tibialis posticus (figs. 20, 23, & 24, T. P). This arises, by muscular fibres, from the postero-tibial aspect of the fibula below the origin of the flexor longus tertius, tibiad of the insertion of the ilio-peroneal, and within (i. e. peronead) and partly above the origin of the peroneo-tibial. Passing downward, its strong wide tendon lines the groove, behind the tarsus, in which the flexor tendons run. It is finally inserted into the postero-inferior margin of that cup for the front of the central tarsal bone which is formed by the proximal ends of the fourth and fifth metatarsals. The tendon of insertion passes superficially to the very strong ligament which binds together the second and fifth metatarsals. Fig. 26. Deeper front view of right leg. Bs-B5. Extensores phalangoruin. El & E2, E°. Extensores metatarsorum. E. L. Extensor longus digitorum. F. H Flexor hallucis. P1. Peroneus. PP. Popliteus. P. T. Peroneo-tibial. T. A. Tibialis anticus. |