Posterior Thigh Muscles

Question 1

Biceps femoris origin

Answer 1

Long head originates from ischial tuberosity, short head originates from lateral lip of linea aspera

Question 2

Biceps femoris insertion

Answer 2

Head of fibula

Question 3

Biceps femoris innervation

Answer 3

Sciatic nerve (L5, S1-S2)

Question 4

Biceps femoris function

Answer 4

Flexes and laterally rotates leg at knee joint, extends and laterally rotates thigh at hip joint

Question 5

Semitendinosus origin

Answer 5

Ischial tuberosity

Question 6

Semitendinosus insertion

Answer 6

Medial surface of proximal tibia

Question 7

Semitendinosus innervation

Answer 7

Sciatic nerve (L5, S1-S2)

Question 8

Semitendinosus function

Answer 8

Flexes and medially rotates leg at knee joint, extends and medially rotates thigh at hip joint

Question 9

Semimembranosus origin

Answer 9

Ischial tuberosity

Question 10

Semimembranosus insertion

Answer 10

Medial tibial condyle

Question 11

Semimembranosus innervation

Answer 11

Sciatic nerve (L5, S1-S2)

Question 12

Semimembranosus function

Answer 12

Flexes and medially rotates leg at knee joint, extends and medially rotates thigh at hip joint