. The anatomy of the domestic animals. Veterinary anatomy. THE MUSCLES OF THE LEG AND FOOT 337 Insertion.—(1) The ridge on the front of the proximal end of the large meta- tarsal bone; (2) the first and second tarsal bones. Action.—To flex the hock joint. Structure.—The origin is fleshy, and forms a groove in which lie the common tendon of the long extensor and peroneus tertius and a synovial pouch which de- scends from the femoro-tibial joint. Many superficial fibers arise from the deep fascia at the proximal part of the leg and thus from the tibial crest. Passing down- ward on the tibia, the
. The anatomy of the domestic animals. Veterinary anatomy. THE MUSCLES OF THE LEG AND FOOT 337 Insertion.—(1) The ridge on the front of the proximal end of the large meta- tarsal bone; (2) the first and second tarsal bones. Action.—To flex the hock joint. Structure.—The origin is fleshy, and forms a groove in which lie the common tendon of the long extensor and peroneus tertius and a synovial pouch which de- scends from the femoro-tibial joint. Many superficial fibers arise from the deep fascia at the proximal part of the leg and thus from the tibial crest. Passing down- ward on the tibia, the belly is united by tendinous and fleshy fibers with the per- oneus tertius, and terminates close to the tarsus in a point on the tendon of inser-. 294.—Injected Synovial Sheaths OF Tarsal Region of Horse; Medi/ VD View. a, Synovial sheath of peroneus tertius and tibialis anterior; /). bursa under medial (cunean) tendon of tibialis anterior; c, synovial sheath of flexor longus; d, tarsal sheath of deep flexor; e, e', bursa under superficial flexor tendon; /, /', tibio-tarsal joint capsule; J, long extensor; 3, tibialis anterior; 2', medial (cun- ean) tendon of 3; 3, flexor longus; 4. deep digital flexor; 5, superficial flexor tendon; G, gastrocnemius tendon; 7, tibia; S, tarsus; 9, tuber calcis; 10, large metatarsal bone; 11, medial small metatarsal bone; 12, 12', fascial bands. (After Ellenberger, in Leisering's Atlas.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sisson, Septimus, 1865-1924. Philadelphia, London, W. B. Saunders Company
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