👉 The bound veins are the superficial veins that lie beneath the skin and are usually visible through the dermis layer. They are formed by the anastomosis of smaller, deeper veins and are often more prominent in areas with thinner subcutaneous fat. Bound veins can be easily visible when the skin is stretched or pulled, like during a neck dissection or when performing certain medical procedures. Their visibility can also be affected by factors such as body habitus, age, and skin thickness.