Question: what is the origin and insertion of the semimembranosus
Answer: Semimembranosus muscle Muscles of the gluteal and posterior femoral regions ( semimembranosus labeled at bottom left ) Details Origin Ischial tuberosity Insertion Medial condyle of tibia Artery Profunda femoris and gluteal arteries Nerve Tibial part of sciatic nerve ( L5 , S1 and S2 ) Actions Extension of hip and flexion of knee Antagonist Quadriceps muscle and Tensor fasciae latae Identifiers Latin Musculus semimembranosus TA A04.