semi·​mem·​bra·​no·​sus ˌsem-ē-ˌmem-brə-ˈnō-səs How to pronounce semimembranosus (audio)
plural semimembranosi -ˌsī How to pronounce semimembranosus (audio)
: a large muscle of the inner part and back of the thigh that arises by a thick tendon from the back part of the tuberosity of the ischium, is inserted into the medial condyle of the tibia, and acts to flex the leg and rotate it medially and to extend the thigh

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Cite this Entry

“Semimembranosus.” Medical Dictionary, Merriam-Webster, Accessed 18 Jun. 2024.

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