The largest organ in the human body is skin. It covers the entire external surface of the body, acting as a protective barrier against external elements. The skin has three layers: the epidermis, dermis, and hypodermis, each playing a crucial role in maintaining the body's health.
The skin is made up of water, protein, fats, and minerals, and it performs various essential functions, including:
- Protection: Acting as a barrier against bacteria, viruses, and other harmful substances.
- Regulation of temperature: Regulating body temperature through sweating and shivering.
- Sensation: Receiving sensory information through touch, pressure, pain, and temperature.
- Vitamin D production: Synthesizing vitamin D when exposed to sunlight.
While the skin is the largest organ in the body, the liver is the largest internal solid organ.
Note: While some sources claim that the liver is the largest organ, this is incorrect. The skin is the largest organ in the body.