The human integumentary system
The skin as a living shield
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The science of hair and nails
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The skin as a living ecosystem
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YOUR GOAL
Master of The human integumentary system
Acid mantle: Your skin is naturally acidic, with a pH similar to coffee, which helps stop harmful bacteria from growing.
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.
What is the first stage of the skin's wound healing process, which stops active bleeding?
What is the oily substance produced by glands to lubricate and waterproof human skin?
Approximately how many sensory receptors are found in one square centimeter of human fingertips?
Which gland is responsible for producing the sebum that forms the skin's protective lipid barrier?
Why do healed skin scars look different and feel less functional than original skin?
Approximately how many microbes live on a single square centimeter of healthy adult skin?