Posterior Thigh

Question 1

Muscles of the Post. Thigh

Answer 1

Semimembranosus, Semitendinosus, Biceps Femoris

Question 2

What Nerve innervates the Post thigh

Answer 2

Sciatic N

Question 3

Divisions of the Sciatic Nerve

Answer 3

Branches int:
- Tibial N (goes Posterior compartment of leg)
- Common Fibular N, branches into Superficial (Lateral part of leg) and Deep (Ant. part of leg)

Question 4

Semimembranosus A, Inn, Act

Answer 4

• Ischial Tuberosity
• Medial COndyle of Tibia
• Extension of thigh at hip, flexion at knee, medial roation of leg
• Sciatic N (Tibial Division)

Question 5

Semitendinosus A, Inn, Act

Answer 5

• Ischial Tuberosity
• Tibia (superior part of medial surface)

Question 6

Biceps Femoris Long head A, Inn, Act

Answer 6

Ischial Tuberosity, Head of Fibula
- Extenion of thigh at hip, Flexion at knee, Lateral Rotation of leg
- Sciatic N (Tibial)

Question 7

Biceps Femoris Short head

Answer 7

Lateral lip of linea Aspera of femur, Head of Fibula
- Flexion at knee, Lateral Rotation of leg
- Sciatic N (Fibular division)