Can You Answer This Basic Medical Question Correctly?

🌡️ Regulate body temperature
🛡️ Protect the body from the outside environment
🖐️ Detect touch, pressure, pain, and temperature
💧 Help prevent excessive water loss
🦠 Provide a barrier against many harmful substances and microorganisms

And its size is surprisingly impressive.

In an average adult, the skin covers roughly 1.5–2 square meters of surface area. Its total mass is also substantial, although estimates vary depending on how skin and underlying tissues are measured.

So while organs such as the liver and brain are often what people think of first, the skin is the body’s largest organ by surface area and is commonly described as the largest organ overall.

The trick in this question is the word “organ.”

Many people automatically imagine something hidden deep inside the body.

But the largest organ isn’t hidden at all.

You’re wearing it right now. 😄

So, how did you do?

👇 Did you choose SKIN immediately, or did you almost pick the brain or lungs?

Comment A, B, C, or D before checking what everyone else answered!

This is a general biology trivia question; exact measurements of skin area and mass vary with body size and how they are measured.