Unit 5 - Lower Limb: Compartments of the Thigh (Ex. IV)

Question 1

A compartment

Answer 1

hip flexors and knee extensors:
  - vastus medialis, lateralis, intermedius; rectus femoris (quads)
  - sartorius
contents:
  - femoral n.
  - branches of femoral a. and vv. --> L circumflex femoral a. 
supplied by:
  - femoral n.
  - L circumflex femoral a.
deep a. and vv. of thigh

Question 2

M compartment

Answer 2

hip adductors, flexors, and extensors:
  - adductor longus, brevis, magnus
  - gracilis
  - pectineus
contents:
  - obturator n.
  - femoral n.
  - obturator a. and v.
  - deep a. and v. of thigh --> M circumflex femoral a. 
supplied by:
  - femoral n. and obturator n.
  - M circumflex femoral a.

Question 3

P compartment

Answer 3

hip extensors and knee flexors:
  - semimembranosus, semitendinosus, biceps femoris (hammies)
contents:
  - sciatic n.
  - branches of deep a. and v. of thigh
supplied by:
  - tibial n. and common fibular n.
  - perforating branches of deep a. and v. of thigh (pierce adductor magnus to get P)

Question 4

What is the pes anserinus?

Answer 4

formed by:
- sartorius (A)
- gracilis (M)
- semitendinosus (P)
muscles cross thigh M and join to form it
common tendon that overlies anserine bursa I-M to knee
one muscle from each compartment