Posterior Thigh

Question 1

Semi-tendinosus Origin

Answer 1

Ischial Tuberosity

Question 2

Semi-tendinosus Insertion

Answer 2

Medial surface of proximal tibia (most posterior portion of pet anserinus)

Question 3

Semi-tendinosus Action

Answer 3

Hip extension, knee flexion, internal rotation with flexed knee, can assist extending trunk

Question 4

Semi-tendinosus Innervation

Answer 4

Tibial portion of sciatic nerve L5, S1, S2

Question 5

Semi-membranosus Origin

Answer 5

Ischial tuberosity

Question 6

Semi-membranosus Insertion

Answer 6

Posterior surface of medial condyle of tibia

Question 7

Semi-membranosus Action

Answer 7

Hip extension, knee flexion, internal rotation with flexed knee

Question 8

Semi-membranosus Innervation

Answer 8

Tibial portion of sciatic nerve L5, S1, S2

Question 9

Biceps Femoris Origin

Answer 9

Long head: Ischial tuberosity

Short head: Linea aspera and lateral supracondylar line of femur

Question 10

Biceps Femoris Insertion

Answer 10

Head of fibula (tendon is split by lateral collateral ligament)

Question 11

Biceps Femoris Action

Answer 11

Long head does hip extension

Both do knee flexion & lateral rotation with flexed knee

Question 12

Biceps Femoris Innervation

Answer 12

Long head: tibial portion of sciatic nerve l5, S1*, S2

Short head: common fibular portion of sciatic nerve L5, S1*, S2