Anterior compartment of thigh ( muscles and attachments)

3. LECTURE NO 06
THE ANTERIOR
COMPARTMENTS OF THIGH

4. femur
Medial
Latera
l
Anterior compartment-
Extensors of the knee
Femoral Nerve
Medial compartment-
Adductors of the
knee
Obturator Nerve
Posterior
compartment-
Flexors of the
knee
Sciatic Nerve

5. Medial

6. Thigh
 Anterior compartment = knee
extensors and some hip flexors;
innervated by femoral nerve, blood
supply by femoral artery and its
branches

7. Thigh
 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

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

9. Anterior Compartment of
Thigh
 Cutaneous Innervation:
Femoral cutaneous nerves:
Lateral
Intermediate
Medial
Posterior

12. Anterior Compartment of
Thigh
 Adductor Canal:
Borders:
Lateral:
Vastus medialis muscle.
Posterior:
Adductor longus and magnus.
Anteromedial:
Sartorius muscle.

13. Anterior Compartment of
Thigh
 Adductor Canal:
Contents:
Saphenous nerve:
Termination of femoral nerve.
Nerve to vastus medialis.
Terminal part of obturator nerve.
Terminal parts of femoral artery and
vein.
Deep lymph vessels.

15. Anterior Compartment of
Thigh
 Blood Supply:
Femoral Artery:
Superficial circumflex iliac.
Superficial epigastric.
Superficial external pudendal.
Deep external pudendal.
Descending genicular.

17. Anterior Compartment of
Thigh
 Nerve of the Anterior Compartment
of the Thigh
 The femoral nerve (L2,L3,L4) supplies
the muscles of the anterior
compartment of the thigh, including
the pectineus muscle. The psoas
muscles receives its nerve supply
from the lumbar plexus.

18. FEMORAL NERVE

19. L2
L3
L4
iliopsoas
Rectus
femoris
pectineus
Vastus
medialis
Vastus
intermedius
sartorius
Vastus
lateralis
Motor Branches of the
Femoral Nerve

20. Anterior Compartment of
Thigh
 Muscles:
Iliopsoas.
Sartorius.
Pectineus.
Quadriceps:
Rectus femoris.
Vastus lateralis.
Vastus intermedius.
Vastus medialis.

21. Anterior Compartment of Thigh

22. Figure 1
Psoas minor
Iliac crest
Psoas major
Iliopsoas
12th rib
Quadratus lumborum
Iliacus
Anterior superior iliac spine
Tensor fasciae latae
Pectineus
Sartorius
Quadriceps femoris
• Rectus femoris
• Vastus lateralis
• Vastus medialis
(a)
Adductor magnus
Patella
Patellar ligament
Tendon of quadriceps femoris
12th thoracic vertebra
5th lumbar vertebra
Adductor longus
Gracilis

29. Femoral Triangle
 This is a clinically important triangular
subfascial space in the uperomedial one-
third part of the thigh.
 The femoral pulse can easily be palpated in
the femoral triangle, 2 to 3 cm inferior to the
midpoint of the inguinal ligament.
 The head of the femur lies posterior to the
femoral artery at this site, making compression
of the vessel easy.

30. Femoral Triangle
Superiorly: Inguinal
ligament
Medially: Adductor longus
Laterally: Sartorius
"So I May Always Love Salat"

32. Contents
(lateral to medial):
Femoral Nerve (not in femoral
sheath)
Femoral Artery (in femoral
sheath)
Femoral Vein (in femoral sheath)
Lymphatics (in femoral sheath)
FEMORAL TRIANGLE

33. Femoral Triangle

34.  Floor:
Iliopsoas muscle.
Pectineus muscle.
Adductor longus muscle.
Femoral Triangle