semimembranosus

Question 1

semimembranosus shape

Answer 1

fusiform, deep to semi ten & biceps fem

Question 2

semimembranosus origin

Answer 2

upper lateral facet on ischial tuberosity

Question 3

semimembranosus insertion

Answer 3

horizontal groove on the posteromedial surface of medial tibial condyle

Question 4

semimembranosus direction of fibres

Answer 4

inferiorly, medially

Question 5

semimembranosus actions

Answer 5

flexes knee, extends hip, medially rotates tibia on femur

Question 6

semimembranosus function

Answer 6

walking (hip extension & deceleration in swing phase)

Question 7

semimembranosus nerve supply

Answer 7

sciatic nerve L5, S1, S2