Posterior Thigh- muscles

Question 1

Biceps femoris- origin

Answer 1

Long head- inferomedial part of the upper area of the ischial tuberosity
Short head- 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 leg at knee joint; extends and laterally rotates thigh at hip joint and laterally rotates leg at knee joint

Question 5

Semitendinous- origin

Answer 5

Inferomedial part of the upper area of the ischial tuberosity

Question 6

Semitendinous- insertion

Answer 6

Medial surface of proximal tibia

Question 7

Semitendinous- innervation

Answer 7

Sciatic nerve (L5, S1, S2)

Question 8

Semitendinous- function

Answer 8

Flexes leg at the knee joint and extends thigh at hip joint; medially rotates thigh at hip joint and leg at knee joint

Question 9

Semimembranosus- origin

Answer 9

Superolateral impression on the ischial tuberosity

Question 10

Semimembranosus- insertion

Answer 10

Groove and adjacent bone on medial and posterior surface of medial tibial condyle

Question 11

Semimembranosus- innervation

Answer 11

Sciatic nerve (L5, S1, S2)

Question 12

Semimembranosus- function

Answer 12

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