Femoral Triangle

00:01 Now let's have a look at the femoral triangle, that space that had the femoral nerve artery and vein located within it.

00:09 So here we have the femoral triangle seen on the anterior surface of this right lower limb.

00:16 Here we can see its base is formed by the inguinal ligament.

00:19 It's lateral border is formed by the medial margin of sartorius.

00:24 And then its medial border is formed by the medial margin of adductor longus.

00:29 So we can see we have that triangle.

00:32 The floor is formed by iliopsoas and pectineus.

00:36 It also has a contribution most medially from adductor longus.

00:40 This forms the floor those three muscles.

00:44 The apex is really continuous with the adductor canal that will finish as the abductor hiatus and that allows femoral nerve artery and vein to pass down in this direction giving branches as it passes.

00:56 The roof of the femoral triangle is covered by the skin superficial and deep fascia of the thigh.

01:05 The contents of the femoral triangle, like I've said, we've got the femoral nerve most laterally, then medially we have the femoral artery, then we have the femoral vein.

01:14 So nerve, artery, vein, running lateral to medial.

01:18 We'll also find we have some lymphatic vessels and some lymph nodes within this space as well.

01:23 And these actually can be really quite big and substantial as part of the superficial inguinal lymph nodes.

01:30 Covering all of this is the fascia lata.

01:32 And there's an important opening within that fascia lata which was spoken about before.

01:37 And this is the saphenous ring that allows the great saphenous vein that is running up from the distal aspect of the lower limb to drain all that venous blood from the cutaneous aspect of the lower limb.

01:48 The great saphenous vein then passes through this ring into the femoral vein, which then passes up into the pelvis of the abdomen and ultimately into the right atrium of the heart.