Hamstring Muscles

Question 1

What is the MA for the Semitendinosus?

Answer 1

Extension of the hip joint

Flexion of the knee joint and medial rotation of the knee joint when flexed

When hip and knee joints are flexed (as when sitting), these muscles can extend the trunk at the hip joint (to rise)

Question 2

What is the PA for the Semitendinosus?

Answer 2

Ischial tuberosity

Question 3

What is the DA for the Semitendinosus?

Answer 3

Pes anserine of tibia

Question 4

What is the N of the Semitendinosus?

Answer 4

Tibial division of sciatic nerve (L5, S1, & S2)

Question 5

What is the MA for the Semimembranosus?

Answer 5

Extension of the hip joint

Flexion of the knee joint and medial rotation of the knee joint when flexed

When hip and knee joints are flexed (as when sitting), these muscles can extend the trunk at the hip joint (to rise)

Question 6

What is the PA for the Semimembranosus?

Answer 6

Ischial tuberosity

Question 7

What is the DA for the Semimembranosus?

Answer 7

Posterior medial condyle of tibia

Reflected attachment forms oblique popliteal ligament (to lateral femoral condyle)

Question 8

What is the N of the Semimembranosus?

Answer 8

Tibial division of sciatic nerve (L5, S1, & S2)

Question 9

What is the MA for the Biceps Femoris?

Answer 9

Flexion of the knee joint

Lateral rotation of the knee joint when flexed

Long head does extension of the hip joint

Question 10

What is the PA for the Biceps Femoris?

Answer 10

Long Head: ischial tuberosity

Short Head: linea aspera and lateral supracondylar line of femur

Question 11

What is the DA for the Biceps Femoris?

Answer 11

Lateral side of head of fibula- tendon is split at this site by fibular collateral ligament (LCL) of knee

Question 12

What is the N of the Biceps Femoris?

Answer 12

Long Head: tibial division of sciatic nerve (L5, S1, & S2)

Short Head: common fibular division of sciatic nerve (L5, S1, & S2)