Posterior Thigh Muscles 0.0 / 5 ? MedicineMedicineUniversityNone Created by: ftpptfCreated on: 02-05-18 15:18 What is the proximal attachment of semitendinosus? Ischial tuberosity. 1 of 12 What is the distal attachment of semitendinosus? Medial surface of superior part of tibia. 2 of 12 What is the innervation of semitendinosus? Tibial division of sciatic nerve (L5, S1, S2). 3 of 12 What are the main actions of semitendinosus? Extend hip joint and flex knee joint. Medially rotate leg when knee is flexed. Extend trunk when hip and knee flexed. 4 of 12 What is the proximal attachment of semimembranosus? Ischial tuberosity. 5 of 12 What is the distal attachment of semimembranosus? Posterior part of medial condyle of tibia. Reflected attachment forms oblique popliteal ligament (to lateral femoral condyle). 6 of 12 What is the innervation of semimembranosus? Tibial division of sciatic nerve (L5, S1, S2). 7 of 12 What are the main actions of semimembranosus? Extend hip joint and flex knee joint. Medially rotate leg when knee is flexed. Extend trunk when hip and knee flexed. 8 of 12 What are the proximal attachments of biceps femoris? Long head = ischial tuberosity. Short head = linea aspera and lateral supracondylar line of femur. 9 of 12 What are the distal attachments of biceps femoris? Lateral side of head of fibula, tendon is split at this site by fibular collateral ligament of knee. 10 of 12 What are the innervations of biceps femoris? Long head = tibial division of sciatic nerve (L5, S1, S2). Short head = common fibular division of sciatic nerve (L5, S1, S2). 11 of 12 What are the main actions of biceps femoris? Flexes knee joint and rotates it laterally when knee is flexed. Extends hip joint (e.g. when starting to walk). 12 of 12
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