Semimembranosus
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Description[edit | edit source]
Semimembranosis is one of a group of muscles called the Hamstrings. It is located on the posteromedial side of the thigh deep to Semitendinosus. Its origin is the ischial tuberosity on the inferior pelvis and the insertion is the medial tibial condyle. It's primary action is flexion of the knee joint.[1]
Origin[edit | edit source]
A strong membranous tendon attaches to the upper lateral facet on the rough part of the ischial tuberosity.[1]
Insertion[edit | edit source]
An aponeurotic tendon arises at the distal end of the semimembranosus where it narrows and attaches to a horizontal groove on the posteromedial surface of the medial tibial condyle. The tendon then passes upwards and laterally to form the oblique popliteal ligament.[1]
A bursae separate the muscle from the medial head of the tibia and the medial head of the Gastrocnemius[1]
