Muscles Of Posterior Compartment Of The Thigh

Question 1

Biceps Femoris (long head)

Answer 1

O: ischial tuberosity
I: head of fibula
A: extend thigh and flex leg (knee)
N: tibial portion of sciatic

Question 2

Biceps Femoris (short head)

Answer 2

O: linea aspera
I: head of fibula
A: extend thigh and flex leg (knee)
N: common paroneal portion of sciatic

Question 3

Semitendinosis

Answer 3

O: ischial tuberosity
I: medial surface of tibia inferior to condyle
A: extend thigh, flex leg and medially rotate leg (knee)
N: tibial portion of sciatic

Question 4

Semimembranosis

Answer 4

O: ischial tuberosity
I: medial condyle of tibia
A: extend thigh, flex and medially rotate leg (knee)
N: tibial portion of sciatic