FEMORAL TRIANGLE
FEMORAL TRIANGLE
- The femoral triangle (of Scarpa) is an anatomical region of the upper inner human thigh.
- It is a subfascial space which in living people appears as a triangular depression inferior to the inguinal ligament when the thigh is flexed, abducted and laterally rotated.
STRUCTURE:
The femoral triangle is bounded:
- superiorly by the inguinal ligament.
- medially by the medial border of the adductor longus muscle.
- laterally by the medial border of the sartorius muscle.
- Its floor is formed by the pectineus and adductor longus muscles medially and iliopsoas muscle laterally.
- Its roof is formed by the fascia lata, except at the saphenous opening where it is formed by the cribriform fascia.
CONTENTS:
- The femoral triangle is important as a number of vital structures pass through it, right under the skin.
- The following structures are contained within the femoral triangle (from lateral to medial):
- Femoral nerve and its (terminal) branches.
Femoral sheath and its contents:
- Femoral artery and several of its branches.
- Femoral vein and its proximal tributaries (e.g., the great saphenous and deep femoral veins).
- Deep inguinal lymph nodes and associated lymphatic vessels.
Exam Question
- Lymphatics is the medial most structure in femoral triangle
- Lateral margin of femoral triangle is formed by sartorius
- Femoral vessels lies in femoral triangle
- Femoral triangle floor is formed by pectineus and adductor longus muscles medially and iliopsoas muscle laterally.
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