Muscles of the Thigh : Hamstring Group

Question 1

Biceps Femoris

Answer 1

O (Long Head) : Ischial tuberosity and sacrotuberous ligament
O (Short Head) : Lateral lip of linea aspera and lateral supracondylar line of the femur
I : Head of the fibula and lateral tibial condyle
A :
1. Flex the leg at the knee joint
2. Extend the thigh at the hip joint

Question 2

Semitendinosus

Answer 2

O : Ischial tuberosity
I : Posterior aspect of medial condyle of the tibia
A :
1. Flex the leg at the knee joint
2. Extend the thigh at hip joint

Question 3

Semimembranosus

Answer 3

O : Ischial tuberosity
I : Posterior aspect of medial condyle of the tibia
A :
1. Flex the leg at the knee joint
2. Extend the thigh at the hip joint

Question 4

Popliteus

Answer 4

O : Lateral condyle of the femur
I : Proximal, posterior aspect of tibia
A :
1. Medially rotates the leg at the knee joint
2. Flexes the leg at the knee joint