The femoral triangle is a region in the upper thigh bounded superiorly by the inguinal ligament, laterally by the sartorius muscle, and medially by the adductor longus muscle. It contains the femoral nerve, artery, and vein which pass through the triangle in the femoral sheath. The floor is formed by the iliacus, psoas major, pectineus, and adductor longus muscles and is gutter shaped rather than flat.

1. The Femoral Triangle

2. The Femoral Triangle is a
region found at the medial
aspect of the upper thigh

3. The Femoral Triangle is a
region found at the medial
aspect of the upper thigh
The floor of the triangle
is gutter shaped

4. Femoral Triangle Boundaries
Superior Border
•Inguinal ligament
Inguinal ligament
Right Femoral
Triangle

5. Femoral Triangle Boundaries
Superior Border
•Inguinal ligament
Lateral Border
•Sartorius – medial edge
Inguinal ligament
Right Femoral
Triangle
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6. Femoral Triangle Boundaries
Superior Border
•Inguinal ligament
Lateral Border
•Sartorius – medial edge
Inguinal ligament
Right Femoral
Triangle
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7. Femoral Triangle Boundaries
Superior Border
•Inguinal ligament
Lateral Border
•Sartorius – medial edge
Medial Border
•Adductor Longus
- medial edge
Inguinal ligament
Right Femoral
Triangle
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8. Femoral Triangle Boundaries
Superior Border
•Inguinal ligament
Lateral Border
•Sartorius – medial edge
Medial Border
•Adductor Longus
- medial edge
Inguinal ligament
Right Femoral
Triangle
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9. Femoral Triangle Boundaries
Superior Border
•Inguinal ligament
Lateral Border
•Sartorius – medial edge
Medial Border
•Adductor Longus
- medial edge
Inguinal ligament
Right Femoral
Triangle
medial
lateral
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10. Floor of the Femoral Triangle
Inguinal ligament
Right Femoral
Triangle
medial
lateral
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The floor of the Femoral Triangle
consists of 3 muscles
It is not flat but gutter shaped

11. Floor of the Femoral Triangle
Inguinal ligament
Right Femoral
Triangle
medial
lateral
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From lateral to medial

12. Floor of the Femoral Triangle
Inguinal ligament
Right Femoral
Triangle
medial
lateral
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From lateral to medial
Iliacus

13. Floor of the Femoral Triangle
Inguinal ligament
Right Femoral
Triangle
medial
lateral
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From lateral to medial
Iliacus
Psoas Major
psoas
major

14. Floor of the Femoral Triangle
Inguinal ligament
Right Femoral
Triangle
medial
lateral
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From lateral to medial
Iliacus
Psoas
Pectineus and Adductor Longus
psoas
pectineus

15. Femoral Triangle Contents
From Lateral to Medial
N - Femoral Nerve

16. Femoral Triangle Contents
From Lateral to Medial
N - Femoral Nerve
A -Femoral Artery

17. Femoral Triangle Contents
From Lateral to Medial
N - Femoral Nerve
A -Femoral Artery
V - Femoral Vein

18. Femoral Triangle Contents
From Lateral to Medial
N - Femoral Nerve
A -Femoral Artery
V - Femoral Vein
(femoral canal containing lymph nodes)

19. Femoral Triangle Contents
From Lateral to Medial
N - Femoral Nerve
A -Femoral Artery
V - Femoral Vein
Inside Femoral Sheath
(femoral canal containing lymph nodes)

20. Blood Supply

21. External Iliac Artery
Arterial Supply

22. Common
Femoral Artery
External Iliac Artery
Arterial Supply

23. Common
Femoral Artery
Superficial
Femoral Artery
External Iliac Artery
Arterial Supply

24. Common
Femoral Artery
Superficial
Femoral Artery
External Iliac Artery
Arterial Supply

25. Common
Femoral Artery
Superficial
Femoral Artery
External Iliac Artery
Deep Femoral Artery
or
Profunda Femoris
Arterial Supply

26. Common
Femoral Artery
Superficial
Femoral Artery
External Iliac Artery
Deep Femoral Artery
or
Profunda Femoris
Medial Circumflex
Femoral Artery
Arterial Supply

27. Common
Femoral Artery
Superficial
Femoral Artery
External Iliac Artery
Deep Femoral Artery
or
Profunda Femoris
Medial Circumflex
Femoral Artery
Lateral Circumflex
Femoral Artery
Arterial Supply

28. Femoral Vein
Deep System
Venous System

29. Great Saphenous Vein
Superficial System
Femoral Vein
Deep System
Venous System

30. Great Saphenous Vein
Superficial System
Femoral Vein
Deep System
Sapheno-Femoral
Junction
Venous System

31. Summary of Muscles in the Femoral Triangle

32. Sartorius
Origin Anterior superior iliac spine
Insertion Superior aspect medial surface of
tibial shaft
Action Flexes, adducts and laterally
rotates the hip joint and flexes the
knee
Nerve Supply Anterior division of femoral nerve
(L3, L4)
Blood Supply Femoral artery
Anterior Thigh

33. Hip Flexors
Iliacus
Origin Upper 2/3 of iliac fossa of
ilium, lateral aspect of sacrum
Insertion Lesser trochanter inferior
aspect
Action Flexes and medially rotates hip
Nerve Supply Muscular branch of femoral
nerve (L2, L3)
Blood Supply Lumbar branch of iliopsoas
branch of internal iliac artery

34. Hip Flexors
Psoas
Origin Anterior surfaces and lower
borders of transverse
processes of L1 - L5 and bodies
and discs of T12 - L5
Insertion Lesser trochanter
Action Flexes and medially rotates
the hip
Nerve Supply Anterior primary rami L1,2
Blood Supply Lumbar branch of iliopsoas
branch of internal iliac artery

35. Anterior Thigh
Pectineus
Origin Pectineal surface of the pubis
Insertion Pectineal line of femur below lesser
trochanter
Action Adducts the thigh, flexes hip joint
Nerve Supply Femoral nerve & some innervation
from the obturator nerve (L2, L3,
L4)
Blood Supply Medial circumflex femoral branch
of femoral artery and obturator
artery

36. Adductor Longus
Origin Anterior surface of body of pubis,
just lateral to pubic symphysis
Insertion Middle third of linea aspera,
between the more lateral adductor
magnus and brevis insertions and
the more medial origin of the
vastus medialis
Action Adducts, flexes and medially
rotates the hip joint
Nerve Supply Anterior division of obturator nerve
(L2, L3, L4)
Blood Supply Obturator artery and medial
circumflex femoral artery
Anterior Thigh