OCR Text |
Show 1869.] THE MYOLOGY OF MENOPOMA. 271 The biceps (?) (figs. 9 & 10, B) is slender, like the muscle last described ; it extends from the insertion of the femoro-caudal to the fibula, being fixed to that bone immediately below the attachment of the ilio-peroneal. It expands somewhat just before its insertion. Tibialis anticus (figs. 7, 8, 9, 10, & 11, T. A). This is a large and prominent muscle. It arises from the front of the distal end ot the femur and from the proximal parts of the tibia and fibula. It is inserted into the tarsus on its tibial side. Peroneus. A portion of muscle, somewhat difficult to define exactly, passes down, in front of the insertions of the ilio-peroneal and biceps, from the head of the fibula to the peroneal side of the tarsus. Extensor longus digitorum (figs. 8 & 9, E. L. D). This large muscular layer arises, by a strong aponeurosis, from the front of the distal end of the femur. Passing downwards it goes to the digits. Extensor hallucis (?) (fig. 9, E. H ) . A rather delicate muscle, covered by that last described. It goes from the upper part of the fibula downwards to the hallux. Extensor brevis digitorum (fig. 9, E. B). A small triangular muscle, placed on the peroneal side of that last described, passes down obliquely from the lower end of the fibula to the four peroneal digits. Flexor digitorum (figs. 10 & 11, F. D). This considerable muscle comes into view when the expanded lower part of the semitendinosus is removed. It arises from the posterior surface of the peroneal condyle of the femur, and passes downwards to the pedal digits. Deepest muscles of ventral or flexor surface of right pelvic limb, the semitendinosus and flexor digitorum being cut and reflected. A. Adductor. F. D. Flexor digitorum. F. H. Flexor hallucis. G. Gracilis. 8. T. Semitendinosus. T. A. Tibialis anticus. Flexor hallucis (?) (fig. 11, F. H). On the removal or reflection of the flexor digitorum, a deeper layer of muscle, subtriangular in shape, comes into view. It arises from the whole length of the fibula, and passes obliquely downwards to the sole of the foot. It goes mainly, if not exclusively, to the hallux. Peroneo-tibial (?). Some muscular fibres connect the lower part of the tibia and fibula, passing obliquely from the latter bone downwards and inwards to the former. |