What is the largest organ of the body?

The skin is considered the largest organ of the body, covering approximately 20 square feet in an average adult. It plays a crucial role in protecting the internal organs, regulating body temperature, and enabling the sense of touch. The skin consists of multiple layers, including the epidermis, dermis, and subcutaneous tissue, each contributing to its overall function and structure.

In comparison, while the heart, liver, and lungs are significant organs, they do not surpass the skin in terms of surface area. The heart is a vital muscular organ responsible for pumping blood throughout the body; the liver is essential for various metabolic processes and detoxification; and the lungs are crucial for gas exchange during respiration. However, none of these organs cover as much of the body or play as many diverse roles as the skin does.