Veins of Lower Limb (Left)

Description

The lower limb is made up of six regions: the gluteal, femoral (thigh), knee, leg, talocrural (ankle), and foot regions. Veins of the lower limb drain blood from these regions into the external iliac vein, which is a tributary of the common iliac vein. The veins of the lower limb generally course with their same-named arteries, with one notable exception, the great saphenous vein, which courses superiorly towards the femoral vein, contained in the superficial fascia of the leg and thigh.

The inguinal region acts as a transitional zone, providing a passageway for vessels and nerves to pass between the abdominal cavity and lower limb. The obturator canal is a small opening in the obturator membrane that acts as a passage for the obturator vessels and nerve to travel between the pelvis and femoral region.

The gluteal region communicates with the lower limb and abdominopelvic cavity via the greater and lesser sciatic foramina, respectively.