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The Integumentary System. A. General -1. 7% of body weight2. Integumentary system: skin is integument or covering3. 1.5-4 mm thick4. Epidermis: ?the skin upon"; outer avascular, keratinized layer; 1mm thick5. Dermis: thickest portion; fibrous connective tissue; vascularized6. Hypoderm
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