What is the largest bodily organ in the human body?

The largest bodily organ in the human body is skin, which serves several essential functions. It not only acts as a protective barrier against external elements such as pathogens and harmful substances, but it also plays a crucial role in regulating body temperature and moisture loss. Moreover, skin is involved in the synthesis of vitamin D when exposed to sunlight and has sensory receptors that allow us to perceive touch, temperature, and pain.

While the heart, liver, and lungs are vital organs as well, they do not surpass the skin in size. The heart is a muscular organ responsible for pumping blood, the liver is essential for detoxification and metabolism, and the lungs are crucial for respiration. However, none of these organs can compete with the extensive surface area of the skin, which covers the entire body. This comprehensive role of skin underscores its status as the largest organ in terms of surface area and weight.