In anatomy, skin is referred to as the integument. It is the body's largest organ, covering its entire external surface. The skin has three main layers: the epidermis, dermis, and hypodermis (also known as subcutaneous tissue).
- Epidermis: The outermost layer of the skin, acting as a protective barrier against external factors.
- Dermis: The middle layer, containing blood vessels, nerves, hair follicles, and sweat glands.
- Hypodermis: The deepest layer, composed of fat and connective tissue, providing insulation and cushioning.
The integument plays a vital role in regulating body temperature, protecting against injury and infection, and sensing touch, pressure, and pain.
