Akademik

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1. One of the tendons bounding the popliteal space on either side; the medial h. comprises the tendons of the semimembranosus and semitendinosus muscles; the lateral h. is the tendon of the biceps femoris muscle. H. muscles (a) have origin from the ischial tuberosity, (b) act across (at) both the hip and knee joints (producing extension and flexion, respectively), and (c) are innervated by the tibial portion of the sciatic nerve. The medial h. contributes to medial rotation of the leg at the flexed knee joint, while the lateral h. contributes to lateral rotation. 2. In domestic animals, the combined tendons of the superficial digital flexor, triceps surae, biceps femoris, and semitendinosus muscles which are referred to as the common calcanean tendon (tendo calcaneus communis); it is attached to the tuber calcis of the hock.

ham·string 'ham-.striŋ n

1 a) either of two groups of tendons bounding the upper part of the popliteal space at the back of the knee and forming the tendons of insertion of some muscles of the back of the thigh

b) HAMSTRING MUSCLE

2) a large tendon above and behind the hock of a quadruped corresponding to the human Achilles tendon

hamstring vt, -strung -.strəŋ; -string·ing -.striŋ-iŋ to cripple by cutting the leg tendons <folklore has it that wolf packs try to \hamstring their prey (John Madson)>

any of the tendons at the back of the knee. They attach the hamstring muscles (the biceps femoris, semitendinosus, and semimembranosus) to their insertions in the tibia and fibula.