What is the largest organ in the body?

The skin is the largest organ of the body, encompassing a significant surface area and serving vital functions. It plays a crucial role in protecting internal structures from environmental hazards, regulating temperature, and facilitating the sensation of touch, pain, and pressure. Additionally, the skin is involved in the synthesis of vitamin D and acts as a barrier against pathogens and harmful substances.

While the heart, brain, and liver are critical organs, they do not cover as much surface area as the skin. The heart is responsible for pumping blood throughout the body, the brain is the control center for the nervous system, and the liver performs many essential functions including detoxification and metabolism. However, none of these organs match the sheer size of the skin, which is why it is identified as the largest organ in the body.