What is the term for the body's largest organ, which protects against injury and infection?

The body's largest organ is the skin, which plays a crucial role in protecting against injury and infection. It acts as a barrier to various external threats such as pathogens, chemicals, and physical damage, while also helping to regulate body temperature and fluid balance. The skin contains multiple layers, and its outermost layer, the epidermis, is particularly important for its protective functions. Additionally, skin has immune responses that enable it to respond to infections, making it vital in the body's defense mechanisms. Understanding the significance of skin in these aspects is essential for anyone involved in emergency medical dispatch or healthcare in general, as it underlines the importance of treating skin injuries promptly and effectively.