|The Integumentary System||A collection of organs working together to help your body maintain a healthy internal environment (skin, hair, nails)|
|What does your skin do?||1. protects
2. keeps you "in touch"
3. temperature regulation
4. removes waste
|How does your skin protect?||It keeps foreign particles out.|
|How does your skin keep you "in touch"?||Nerve endings in your skin allow you to feel what's around you.|
|How does your skin regulate temperature?||Sweat glands produce sweat- which cools you down when it evaporates.|
|How does your skin remove waste?||Several chemicals from the bloodstream are waste. They are removed through sweat.|
|What gives your skin color?||Melanin|
|Melanin||A darkening chemical in the skin.|
|More melanin =
Less melanin =
|More melanin = darker skin
Less melanin = lighter skin
|Name the 2 layers of the skin.||1. Epidermis
|Epidermis||The upper, thinnest layer of epithelial tissue.
Cells are dead and it is made up of keratin, which makes skin tough.
|Dermis||The lower, thicker layer of connective tissue.|
|What does the Dermis contain?||blood vessels, nerves, muscle fibers, hair follicles, oil glands, seat glands and collagen|
|Collagen||It provides strength and flexibility|
|Where is hair produced?||At the hair follicle|
|Melanin||Gives hair its color|