Femoral Triangle is a triangular depression on the very front of the upper one-third of the thigh below the inguinal ligament. Its apex is pointed downward.


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All these are as follows:


The primary contents of the femoral triangle are as follows:

In addition to above structures, it also includes:

A short account of some contents of the femoral triangle is supplied in the subsequent text.

Femoral Artery and Its Branches

The femoral artery traverses the femoral triangle from the midpoint of its base to the apex. The artery enters downward and medially. Consequently, in the base of triangle, it is located lateral to the femoral vein but at its apex it is located anterior to the vein. The femoral artery gives 3 superficial branches (superficial epigastric, superficial circumflex iliac, and superficial external pudendal) and 2 deep branches (profunda femoris and deep external pudendal). The profunda femoris is the largest branch of the femoral artery. It appears from the lateral side of the femoral artery about 3.5 cm below the inguinal ligamentand coils medially behind the femoral vessels. It gives rise to medial and lateral circumflex femoral arteries. The medial circumflex artery goes away by passing between the psoas major and pectineus. The lateral circumflex femoral artery enters laterally between the anterior and posterior sections of the femoral nerve.

The deep external pudendal artery pierces the fascia lata and enters medially behind the spermatic cord.

Femoral Vein and Its Branches

The femoral vein accompanies the femoral artery. The vein is posterior to the femoral artery in the apex and medial to it at the base of the triangle. It gets the great saphenous vein and profunda femoris vein and veins corresponding to the superficial branches of femoral artery.

Femoral Nerve

The femoral nerve is located lateral to the femoral artery, outside the femoral sheath, in the groove between the iliacus and the psoas major. About 2.5 cm below the inguinal ligament it divides into anterior and posterior sections which enclose lateral circumflex femoral artery between them. The anterior section produces 2 cutaneous branches- intermediate and medial cutaneous nerves of the thigh. The medial cutaneous branch accompanies the lateral side of the artery; at the apex of the triangle it crosses the front of the artery from lateral to medial side. The posterior section gives rise to cutaneous nerve- the saphenous nerve. It goes downward along the lateral side of the artery.

Lateral Cutaneous Nerve

It appears underneath the lateral border of the psoas major above the iliac crest, runs downward and laterally across the iliac fossa in front of the iliacus muscle under cover of the iliac fascia. It enters the thigh by passing below the lateral end of the inguinal ligament. Occasionally it goes through the inguinal ligament. It gives cutaneous innervation to the upper lateral aspect of the thigh.

Deep Inguinal Lymph Nodes

The deep inguinal lymph nodes are generally 3 in number and are located medial to the upper part of the femoral vein. The lowest one is situated below the junction of great saphenous and femoral veins, the middle 1 in the femoral canal (the gland of Cloquet/Rosenmuller), and the greatest 1 in the femoral ring.

Femoral Sheath

It’s a funnel-shaped fascial sheath enclosing the upper 3-4 cm of the femoral vessels.

The femoral sheath is split into 3 compartments, viz. lateral, intermediate, and medial by 2 anteroposterior septa.