Answer
**Femoral Vein:** The femoral vein is a major vein that runs alongside the femoral artery in the upper thigh. It receives blood from various tributaries, including the great saphenous vein, and carries deoxygenated blood from the lower limb. The femoral vein continues upward and eventually merges with the deep femoral vein to form the common femoral vein.
**Deep Femoral Vein (Profunda Femoris Vein):** The deep femoral vein accompanies the deep femoral artery in the thigh. It receives blood from the veins that correspond to branches of the deep femoral artery and carries deoxygenated blood from the muscles and structures of the thigh. The deep femoral vein joins the femoral vein to create the common femoral vein.
**External Iliac Vein:** The external iliac vein is a continuation of the femoral vein as it passes superiorly through the inguinal ligament. It drains deoxygenated blood from the lower limb and pelvic region. The external iliac vein then joins the internal iliac vein to form the common iliac vein, which contributes to the inferior vena cava and returns blood to the heart.
These veins are integral components of the venous system in the lower limb, responsible for draining deoxygenated blood and facilitating its return to the heart. The interconnected network of veins in the thigh and pelvic regions ensures proper circulation and supports overall limb and systemic function.
Work Step by Step
**Femoral Vein:** The femoral vein is a major vein that runs alongside the femoral artery in the upper thigh. It receives blood from various tributaries, including the great saphenous vein, and carries deoxygenated blood from the lower limb. The femoral vein continues upward and eventually merges with the deep femoral vein to form the common femoral vein.
**Deep Femoral Vein (Profunda Femoris Vein):** The deep femoral vein accompanies the deep femoral artery in the thigh. It receives blood from the veins that correspond to branches of the deep femoral artery and carries deoxygenated blood from the muscles and structures of the thigh. The deep femoral vein joins the femoral vein to create the common femoral vein.
**External Iliac Vein:** The external iliac vein is a continuation of the femoral vein as it passes superiorly through the inguinal ligament. It drains deoxygenated blood from the lower limb and pelvic region. The external iliac vein then joins the internal iliac vein to form the common iliac vein, which contributes to the inferior vena cava and returns blood to the heart.
These veins are integral components of the venous system in the lower limb, responsible for draining deoxygenated blood and facilitating its return to the heart. The interconnected network of veins in the thigh and pelvic regions ensures proper circulation and supports overall limb and systemic function.
