Cutaneous veins are blood vessels that lie under the skin and transport blood from the superficial capillaries to the deep veins. They are located at the bottom of the legs - mainly in the calf and foot, on the lateral surface of the thigh, in the area of the greater trochanter of the femur and ankle joint, on the back of the shoulder, above the elbow.
What functions do cutaneous veins perform? How dangerous are their pathologies? Veins perform a number of functions that are very important for human health: * contour - the skin becomes more elastic, cellulite decreases; * antireflux - prevents the development of blood stasis in the superficial vein, promotes lymph outflow; * exchange - help cleanse the skin and remove toxins; * transport - they carry blood from the capillary network to larger vessels; * drainage - help the outflow of intercellular fluid; * secretory - promote the release of the contents of the sebaceous and sweat glands onto the surface of the skin; * barrier - protect the body from the penetration of pathogenic microorganisms; * nutritious - nourishes skin cells with oxygen and removes metabolic products. Cutaneous veins are widely used to diagnose the condition of the cardiovascular system, since their condition can be used to judge the functioning of the valves. For example, if there is expansion and tortuosity of the venous vessels, then this may indicate a weakening of the blood circulation of the veins. And in cases where the veins are thinned, this indicates an insufficient supply of oxygen to organs and tissues. By observing changes in the color of the veins, liver dysfunction can be identified. You can also judge the state of the circulatory system by the diameter and relief of the veins.