. The comparative anatomy of the domesticated animals. Veterinary anatomy. MUSCLES OF THE POSTERIOR LIMBS. 307 138. commences towards the middle of the tibia. This tendon passes through a ring pierced in the tendon of the muscle that represents the tendinous ])ortion of the tiexor of the metatarsus; it then deviates inwards, and is fixed into the cuneiforms and the superior extremity of the principal metatarsal bone (Fig. 138, 4). 3. A â proper extensor of the external di<jit (lateral extensor of the phalanges in 8olipe(is, the peroneus brevis lateralis in I\Ian), whose fleshy body is altog
. The comparative anatomy of the domesticated animals. Veterinary anatomy. MUSCLES OF THE POSTERIOR LIMBS. 307 138. commences towards the middle of the tibia. This tendon passes through a ring pierced in the tendon of the muscle that represents the tendinous ])ortion of the tiexor of the metatarsus; it then deviates inwards, and is fixed into the cuneiforms and the superior extremity of the principal metatarsal bone (Fig. 138, 4). 3. A â proper extensor of the external di<jit (lateral extensor of the phalanges in 8olipe(is, the peroneus brevis lateralis in I\Ian), whose fleshy body is altogether similar to that of the analogous muscle in the Horse, and is termi- nated by a long tendon which resembles that of the proper extensor of the internal digit (Fig. 138, 7, 8, 9, 10). 4. A muscle which represents the peroneous longus in ISIan, and of which in Solipeds there is not a trace. This muscle commences by a short, conical, muscular body in front of the supero-external tubei'osity of the tibia; and it terminates by a loniC tendon whose direction is as follows: included at first, like the muscular portion, between the proper extensor of the ex- ternal digit and the triple muscular fasciculvis already described, it arrives on the outside of the tarsus, passes through the fibrous groove of the proper extensor, where it is enveloped by a special synovial membrane, passes over the latter in slightly crossing its direction, and is inflected at first hackwaids, tiien outwards, in insinuating itself underneath the external tibio- tarsal ligament, and the calcaneo-metatarsal and the posterior tarso-metatarsal ligaments, which retain it in a channel on the inferior face of the cuboido-scaphoid bone. It is finally inserted into tlie deep face ot the second cunei- form bone, and the external side of the sujierior extremity of the metatarsus, by a small branch detached from tlie outer side of the principal tendon. All these muscles are similarly disposed in the Sheep and Goat.
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