Final answer:
The skin is the largest organ of the human body. While the liver is the largest internal organ, it is surpassed by the skin, which covers the entire body and is part of the integumentary system.
Step-by-step explanation:
Although the liver is the largest internal organ of the human body and plays numerous vital roles in metabolism and regulation, it is the skin that holds the title of being the body's largest organ overall. Your skin is part of the integumentary system, which also includes your hair and nails. The skin is a complex organ, providing an interface between the internal and external environment of the body. It plays an essential role in protecting the body against various threats such as pathogens and physical damage, and it also regulates body temperature and water balance.
Most importantly, the skin covers the entire surface of the body, making it the most extensive organ we have. It consists of multiple layers, including the epidermis, dermis, and subcutaneous tissue, each playing a unique role in protecting the body and facilitating its numerous functions.