Which organ is the largest in the human body?

The skin is the largest organ in the human body, encompassing the entire outer covering. It serves as a barrier protecting the internal structures from external elements such as pathogens, chemicals, and temperature. In terms of surface area, the skin typically measures about 1.5 to 2 square meters and accounts for approximately 15% of a person's total body weight. It also plays a crucial role in regulating body temperature and facilitating sensation through nerve endings.

The liver, while large and essential for various metabolic processes, does not surpass the skin in size. The heart is smaller than both, being a muscular organ crucial for circulation but definitely not the largest. Similarly, the lungs, although significant for respiration, are also smaller compared to the skin. Therefore, the skin's unique position as the largest organ is well-established in human anatomy.