Medial and posterior compartment of thigh

2. THE MEDIAL COMPARTMENT
OF THIGH

3. femur
medial
lateral
Anterior compartment-
Extensors of the knee
Femoral Nerve
Medial compartment-
Adductors of the
knee
Obturator Nerve
Posterior
compartment-
Flexors of the
knee
Sciatic Nerve

4.  Medial Compartment = hip adductors
(some rotation and flexion); innervated
by obturator nerve and its branch,
blood supply by branches off deep
femoral artery and obturator artery
Thigh

6. Medial Compartment of Thigh
 The medial compartment of the thigh is
frequently called the adductor compartment
because the major action of this group of
muscles is adduction, except for the
hamstring portion of the adductor magnus
which performs as a hamstring and is
supplied by a different nerve than the
obturator, which supplies the muscles of the
medial compartment.

7. Medial Compartment of Thigh
 Blood Supply:
Obturator artery:
Branch of internal iliac artery.
 Innervation:
Obturator nerve.
Tibial nerve:
To hamstring portion of adductor
magnus.
 Action:
Adduction

8. Arteries

9. OBTURATOR NERVE

11. Medial Compartment of Thigh
Muscles:
Gracilis.
Adductor longus.
Adductor brevis.
Adductor magnus.
Obturator externus

12. Medial Compartment

13. MUSCLE ORIGIN INSERTION ACTION
NERVE
SUPPLY
GRACILIS INFERIOR
RAMUS OF
PUBIS;
RAMUS OF
ISCHIUM
UPPER PART
OF SHAFT OF
TIBIA
ON ITS MEDIAL
SURFACE
ADDUCTS
THIGH;
FLEXES LEG
OBTURATOR NERVE
ADDUCTOR
LONGUS
BODY OF
PUBIS
POSTERIOR
SURFACE OF
SHAFT OF
FEMUR
ADDUCTS
THIGH AND
ASSISTS
IN LATERAL
ROTATION
OBTURATOR NERVE
ADDUCTOR
BREVIS
INFERIOR
RAMUS OF
PUBIS
POSTERIOR
SURFACE OF
SHAFT OF
FEMUR
ADDUCTS
THIGH AND
ASSISTS IN
LATERAL
ROTATION
OBTURATOR NERVE
ADDUCTOR
MAGNUS
INFERIOR
RAMUS OF
PUBIS; RAMUS
OF ISCHIUM
ISCHIAL
TUBEROSITY
POSTERIOR
SURFACE OF
SHAFT OF
FEMUR;
ADDUCTOR
TUBERCLE OF
FEMUR
ADDUCTS
THIGH AND
ASSISTS IN
LATERAL
ROTATION.
HAMSTRING
PART
EXTENDS
OBTURATOR NERVE AND
TIBIAL PART OF SCIATIC

14. POSTERIOR
COMPARTMENT

15.  Posterior compartment = hip
extensors and knee flexors;
innervated by tibial or common
peroneal nerves, blood supply by
deep femoral artery
Thigh

16. Posterior Compartment of Thigh
 Cutaneous Nerve
◦ The Lateral Femoral Cutaneous Nerve
◦ The Posterior Femoral Cutaneous Nerve
 Innervation:
Common peroneal nerve
Tibial nerve
 Vascular Supply:
Perforating arteries (from profunda
femoris)
Inferior gluteal
 Action:
Hip extension.

17. Sciatic nerve
(L4,L5,S1,S2,S3)
 In pelvis
Lies in front of piriformis
 In gluteal region
Enters the gluteal region through
greator sciatic foramina between the
ischial tuberosity and greator trochentor

19.  In thigh
Enters at lower border of gluteus
maximus . Runs vertically down at
superior border of popliteal fossa where
it divides into tibial ( L4,L5,S1,S2,S3)
and comon peroneal part.(L4,L5,S1,S2)
 Medial; semimembranosis,
semitendinosis
 Lateral; biceps femoris
 Deep/anterior; adductor magnus

20. MUSCLES OF POSTERIOR
COMPARTMENT
 All the muscles are known as the
Hamstrings
 ALL arise from the ischial tuberosity
 The hamstrings are:
◦ Biceps femoris (long head & Short head)
◦ Semimembranosus
◦ Semitendinosus