If routers forwarded IP broadcast packets by default, the packets would have to be forwarded out every interface that is enabled for IP because the 255.255.255.255 IP destination address is assumed to be reachable via every IP enabled interface in the router.
Integumentary System. Introduction. The integumentary system consists of the skin, hair, nails, glands, and nerves. Its main function is to act as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature.
The integumentary system includes the skin and all its derivatives. The skin includes of the epidermis and dermis. Below the skin is the subcutaneous or hypodermis layer, though this last part is not truly part of the skin. The derivatives include the hair, nails, sweat glands, oil glands and more. The integumentary system is the organ system that protects the body from damage.