What is the largest organ in the body?
The the skin is called the skin (integument). Gray's Anatomy (1918) describes it as the largest organ in the body.
What it is
- The largest organ in the body.
- Made of an outer epidermis and a deeper dermis.
- Barrier against water loss and infection, and the organ of touch, warmth, cold, and pain.
Where it is
- Covers the entire outer surface of the body.
- Continuous at the openings with the mucous membranes.
- Has a total surface area of about 1.5-2 square meters in the adult.
Source:
Last verified: 2026-07-18
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