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cwentworth integumen
| Term | Definition |
|---|---|
| homeostasis | internal stability or "steady state" maintained by the body |
| hormone | signal molecule released into the bloodstream that triggers particular responses |
| interstitial fluid | aqueous solution that fills the gaps between cells in a tissue |
| integumentary system | outer covering that physically separates the body from the external environment |
| epidermis | outermost layer of skin |
| melanin | pigmented protein that gives skin its color |
| dermis | layer of skin beneath and supporting the epidermis, made up mostly of fibrous connective tissue that gives the skin its strength and elasticity |
| hypodermis | tissue layer beneath the dermis; contains adipose tissue, a connective tissue that includes fat-storing cells and blood vessels |