ARTi

The human integumentary system

Chapter 1

The skin as a living shield

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Chapter 2

The science of hair and nails

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Chapter 3

The skin as a living ecosystem

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YOUR GOAL

Master of The human integumentary system

Ch 1 · The skin as a living shield
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teacher

teacher I shed a million cells to keep you safe from harm, A brand new living shield is wrapping up your arm.

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teacher
How the body regulates temperature

teacher How the body regulates temperature

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teacher
Fun Fact

Skin weight: The skin is your largest organ, accounting for about 16 percent of your total body weight.

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teacher
The evolutionary magic of melanin

teacher The evolutionary magic of melanin

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teacher
Glossary
epidermis (noun)
The surface epithelium of the skin of a vertebrate, overlying the dermis. In 1852, Swiss histologist Albert von Kölliker published a detailed analysis of this protective tissue's cellular structure.

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Quiz

How many sweat glands does the average human body possess?

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Gossip

Which climate does your skin feel happiest in?

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Quiz

How many dead skin cells does an average human shed every single minute?

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teacher
Quiz

What is the scientific term for blood vessels widening to release body heat?

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teacher
Quiz

What percentage of human body weight does the skin typically account for?

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teacher
Quiz

Which compound in the body is protected from UV destruction by high levels of melanin?

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teacher
Quiz

Approximately how many days does it take for a new skin cell to travel to the surface?

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teacher
Quiz

Which skin layer contains blood vessels, nerves, and sweat glands?

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teacher
Quiz

What is the primary evolutionary benefit of having lighter skin in northern latitudes?

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