Thigh (Posterior)

Question 1

Muscles of posterior compartment of thigh are also known as?

Answer 1

Hamstring muscles

Question 2

Name muscles of posterior compartment of thigh?

Answer 2

1.Biceps femoris
2.Semitendinous
3.Semimembranous

Question 3

Muscles of posterior compartment of thigh are innervated by?

Answer 3

Sciatic nerve

Question 4

Common origin of Muscles of posterior compartment of thigh?

Answer 4

Ischial tuberosity

Question 5

Biceps femoris lies?

Answer 5

Laterally

Question 6

How many heads of biceps femoris? Their origin and insertion?

Answer 6

2 heads:

Origin

Long head
Ischial tuberosity
Short head
Shaft of femur
(Lateral lip of linea aspera) on posterior of femur

Instertion
Head of fibula

Question 7

Innervation of long and short head of biceps femoris?

Answer 7

Sciatic nerve:

long head
(Tibial part of sciatic nerve)

Short head
(Common peroneal/fibular part of sciatic nerve)

Question 8

Semimembranosus and semitendinosus lies?

Answer 8

Medially

Question 9

Insertion of semitendinosus?

Answer 9

Upper part of medial surface of the shaft of tibia

Question 10

Semimembranous forms which ligament?

Answer 10

Oblique popliteal ligament

Question 11

Insertion of semimembranosus?

Answer 11

Medial condyle of tibia

Question 12

Which muscle has a similar action related to Muscles of posterior compartment of thigh but is located in medial compartment?

Answer 12

hamstring portion of adductor magnus

Question 13

Semitendinosus lies ________ to semimembranosus?

Answer 13

Superficial

Question 14

What happens in hamstring avulsion fracture of the ischial tuberosity?

Answer 14

Muscles of posterior compartment of thigh originate from ischial tuberosity

Avulsion fracture causes:
Pain in posterior thigh
Inability to walk
Sciatic nerve damage