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What body system are interacting in the first line of defense involving the skin

User Adam Greenhall
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Immune cells live in the skin and provide the first line of defense against infections. By helping to synthesize and absorb vitamin D, the integumentary system works with the digestive system to encourage the uptake of calcium from our diet.
User Brad Crandell
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Answer:

Innate immune system

Hope this helps ❤️

User Brian Chrisman
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