The semimembranosus muscle (/ ˌsɛmiˌmɛmbrəˈnoʊsəs /) is the most medial of the three hamstring muscles in the thigh. It is so named because it has a flat tendon of origin. It lies posteromedially in …

Aug 2, 2023 · Semimembranosus (along with semitendinosus) occupies the medial aspect of the posterior thigh. It is a relatively long muscle that spans the full length of the thigh – from the hip to the …

Sep 8, 2025 · The semimembranosus is a large muscle located on the medial posterior side of the thigh, running from the hip joint to the knee joint. It is part of the posterior compartment of the thigh and …

The semimembranosus muscle is the deepest and inner most of the hamstring muscles, found on the inner (medial) side of the back of the thigh. It runs almost directly below one of the other hamstring …

Semimembranosis is one of a group of muscles called the Hamstrings. It is located on the posteromedial side of the thigh deep to Semitendinosus and medial to the Biceps Femoris.

Oct 24, 2022 · The semimembranosus is a muscle within the posterior compartment of the thigh. It is located deep to the semitendinosus muscle within the medial aspect of the posterior thigh.

Explore the semimembranosus muscle's origin, action, innervation, and key features. Learn about its role in leg and thigh movement.

The semimembranosus muscle is one of the three hamstring muscles of the posterior compartment of the thigh. It lies deep to the semitendinosus and medial to the biceps femoris.

The semimembranosus muscle is one of the three muscles that form the hamstring group located in the posterior compartment of the thigh. It plays a crucial role in both hip extension and knee flexion, …

Sep 1, 2025 · The semimembranosus muscle is a large muscle at the back of the thigh. It originates from the ischial tuberosity and inserts into the medial condyle of the tibia. Its actions include knee …