What is the normal, slightly acidic pH range of the skin's protective acid mantle?
Chapter 1

The skin as a living shield

Chapter 2

The science of hair and nails

Chapter 3

The skin as a living ecosystem

YOUR GOAL

Master of The human integumentary system

Ch 3 · The skin as a living ecosystem
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artiteacher The microscopic skin microbiome ecosystem

Jul 12

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artiteacher Skin microbiome

Trillions of microbes / Living on your skin / Keeping you so safe!

Jul 10

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artiteacher The chemistry of sweat and oil

Jul 12

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The chemistry of sweat and oil

artiteacher Sweat and sebum work together to create an acidic barrier that keeps skin hydrated and germ-free.

Jul 10

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Our incredible sense of touch

artiteacher Millions of specialized sensory receptors in the dermis translate physical contact into electrical brain signals.

Jul 10

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Skin Safari
BETA

artiteacher Skin Safari

Jul 10

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Fun Fact

Acid mantle: Your skin is naturally acidic, with a pH similar to coffee, which helps stop harmful bacteria from growing.

Jul 10

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Glossary
microbiome (noun)
The community of microorganisms, such as bacteria, fungi, and viruses, that inhabit a particular environment. In 2007, researchers began mapping these diverse microbial communities living across different areas of human skin.

Jul 10

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Gossip

How do you view your own scars?

Jul 10

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Quiz

What is the first stage of the skin's wound healing process, which stops active bleeding?

Jul 10

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artiteacher Our incredible sense of touch

Jul 12

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Quiz

What is the oily substance produced by glands to lubricate and waterproof human skin?

Jul 10

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artiteacher The miraculous skin wound healing process

Jul 12

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Quiz

Approximately how many sensory receptors are found in one square centimeter of human fingertips?

Jul 10

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Quiz

Which gland is responsible for producing the sebum that forms the skin's protective lipid barrier?

Jul 10

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Quiz

What is the normal, slightly acidic pH range of the skin's protective acid mantle?

Jul 10

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Quiz

Why do healed skin scars look different and feel less functional than original skin?

Jul 10

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Quiz

Approximately how many microbes live on a single square centimeter of healthy adult skin?

Jul 10

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Quiz

Which specialized sensory receptor in the skin is responsible for detecting deep pressure and vibrations?

Jul 10