The semimembranosus muscle is one of the hamstring muscles. It flexes the lower leg at the knee joint and rotates it in. It consists of a fleshy muscle belly with a tendon at each end. The muscle fibres originate from the tuberosity of the ischium and extend downward from the knee to insert in the middle of the outer condyle of the femur (upper leg bone) and the medial condyle of the tibia (lower leg bone). It is innervated by the tibial nerve and supplied by the profunda femoris. The tendon of the semimembranosus muscle, along with the semitendinosus and gracilis, form the inner hamstring. Research Semimembranosus Muscle
The semitendinosus muscle originates from the ischium. Its long, narrow, fleshy belly ends two- thirds of the way down the thigh at its tendon, which inserts in the upper part of the tibia. It sits in the muscular groove formed in the semimembranosus muscle at the inner back of the thigh. The semitendinosus is innervated by the tibial nerve and supplied by the tibial artery. This muscle flexes the lower leg and extends the thigh at the hip joint. It is considered one of the hamstring muscles. Its tendon, along with the tendons of the semimembranosus and the gracilismuscles, forms the inner hamstring. Research Semitendinosus
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
Abbreviations
Research Semimembranosus Muscle
