| integumentary system | muscular system |
|---|---|
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What is the first layer of skin called?
epidermis
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how do muscles work?
They contract and relax to make bones move
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What is the second layer of skin called?
dermis
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What is the third layer of skin called?
hypodermis/subcutaneous tissue
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What is the third layer of skin made of?
fat and connective tissue
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What layer of skin would a hair follicle be made in?
dermis
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