What are the different layers of skin and how do they function together to protect and support the body?

The skin has three main layers: the epidermis, dermis, and hypodermis. The epidermis is the outermost layer and acts as a barrier against bacteria and viruses. The dermis provides strength and flexibility to the skin, containing blood vessels, nerves, and sweat glands. The hypodermis is the deepest layer and helps regulate body temperature and store fat. Together, these layers work to protect the body from external threats and provide support for the underlying tissues and organs.