What is the largest organ in the human body?

The largest organ in the human body is the skin. It serves as a protective barrier that shields the internal organs from external environmental factors such as pathogens, UV radiation, and physical injuries. The skin also plays a crucial role in regulating body temperature and facilitating the sensation of touch, pain, and temperature. It is composed of multiple layers, including the epidermis, dermis, and subcutaneous tissue, which work together to perform these vital functions.

The liver, while a significant organ involved in metabolism and detoxification, is not as extensive in surface area as the skin. The heart is a muscular organ responsible for pumping blood throughout the body but is relatively small compared to the surface area of the skin. Similarly, the lungs, which are vital for respiration, do not surpass the skin in size, despite their large surface area for gas exchange. Hence, among all internal and external organs, the skin is recognized as the largest due to its extensive coverage over the body.