👉 The carmen veins are small veins that drain blood from the skin's surface and subcutaneous tissues. They are named after the Latin word for "caretaker" because they carry the blood back to the larger veins near the heart. The carmen veins are very thin-walled and have a very low pressure, so they do not actively pump blood but instead rely on gravity and muscle contractions to return blood to the heart. They play an important role in maintaining skin temperature and hydration by draining excess fluid from the skin's surface.