Citation, DOI and article data
The semimembranosus muscle is one of the hamstring muscles in the posterior compartment of the thigh and accompanies the semitendinosus muscle in the medial aspect of the posterior thigh. It is named for its flattened membranous tendon of its ischial attachment.
Its lateral border forms the superomedial border of the popliteal fossa.
- origin: ischial tuberosity
- insertion: infraglenoid tubercle of the posterior medial tibial condyle, posterior joint capsule (contributing to the oblique popliteal ligament), popliteal fascia and posterior horn of medial meniscus
- flexes knee joint
- medially rotates knee joint (when the knee is flexed beyond 90o)
- extends hip joint (less than biceps femoris)
- arterial supply
- innervation: tibial nerve
- antagonist: quadriceps
- absent muscle
- accessory semimembranosus muscle
- 1. Moore KL, Agur AMR, Dalley AF. Clinically oriented anatomy. LWW. ISBN:1451119453. Read it at Google Books - Find it at Amazon
- 2. Sookur PA, Naraghi AM, Bleakney RR, Jalan R, Chan O, White LM. Accessory muscles: anatomy, symptoms, and radiologic evaluation. (2008) Radiographics : a review publication of the Radiological Society of North America, Inc. 28 (2): 481-99. doi:10.1148/rg.282075064 - Pubmed