Quiz: Scratching the Surface: The Itching Quiz
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Scratching the Surface: The Itching Quiz
By: Staff
Image: refer to hsw

About This Quiz

With 20 square feet (2 square meters) of surface area covering the average human body, it's no surprise that skin can get itchy. And when hair, dust or other irritants make contact, there's a lot that has to happen before we respond with an almost reflexive scratch. Take our quiz to find out what goes on under the skin when it itches.

1.0 of 10
About how many square feet of skin does the human body have?
2.0 of 10
What is the clinical name for itching?
3.0 of 10
When certain stimuli irritate the skin, they send signals to your cerebral cortex through which route?
4.0 of 10
How long does it take for your brain to receive the "itch" message?
5.0 of 10
What did scientists once think itching was a form of?
6.0 of 10
The impulse to scratch an itch is meant to achieve what?
8.0 of 10
9.0 of 10
What health conditions are known to cause itching?
10.0 of 10
In addition to skin, what other organ is exposed to constant irritation?
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