Definition: The cuticulae, also known as the capillary loops or capillaries, are a type of blood vessel in the skin that connect the blood vessels to each other. These vessels carry oxygen and nutrients to the skin's surface and remove waste products from it. They are found on the surface of the skin and are responsible for transporting oxygen and nutrients to the skin's deeper layers. The cuticulae also play a role in regulating the body temperature and controlling fluid balance within the skin