Answer without Google: What's the largest organ in the human body?

Answer

The largest organ in the human body is the skin. While many people think of organs as being internal (like the heart or lungs), an organ is defined as a collection of tissues that work together to perform a specific function. The skin, also known as the integumentary system, covers the entire external surface of the body. For an average adult, the skin accounts for approximately 15% of total body weight and covers a surface area of about 20 square feet (2 square meters). Its primary functions include protecting the body from environmental hazards, regulating body temperature, and enabling the sense of touch. Internally, the liver is the largest organ, but overall, the skin is the largest.