Muscles of the posterior thigh

Question 1

How many muscles are in the posterior compartment of the thigh?

Answer 1

3

Question 2

What are the muscles of the posterior thigh collectively known as?

Answer 2

The hamstrings

Question 3

What 3 muscles are in the posterior compartment of the thigh?

Answer 3

Biceps femoris
Semitendinosus
Semimembranosus

Question 4

What is special about the Biceps femoris?

Answer 4

It has 2 heads

Question 5

What nerve innervates all the muscles in the posterior compartment of the thigh?

Answer 5

The sciatic nerve

Question 6

What is the main action of the Biceps femoris?

Answer 6

Flexion at the knee
Extends leg at the hip
Lateral rotation of the hip and knee

Question 7

What is the name of the two heads of the Biceps femoris?

Answer 7

Long and short. Short head runs deep to the long head

Question 8

What is the action of the Semitendinosus muscle?

Answer 8

Flexion of the leg at the knee joint
Extension of the thigh at the hip
Medially rotates the thigh at the hip and leg at the knee

Question 9

Which muscle is deeper, the Semitendinosus or Semimembranosus?

Answer 9

The Semimembranosus

Question 10

What is the main action of the Semimembranosus muscle?

Answer 10

Flexion of the leg at the knee
Extension of the thigh at the hip
Medially rotates the thigh at the hip and leg at the knee