Ch 3: Integumentary System
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each of the black spaces below before clicking
on it to display the answer.
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| Acne | Inflamed or infected sebaceous glands in the skin
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| Contact inhibition | the end of keratinocyte lateral growth because edges of stratum basale cells are in contact with each other
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| Cornification | Process in which keratinocytes fill with keratin and die as they move toward the surface of the epidermis
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| Cutaneous | Pertaining to the skin
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| Epidermis | Superficial layer of the skin that is subdivided into 4 or 5 general layers called strata
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| Exocrine glands | Glands that produce and secret products that are delivered to the appropriate locations through ducts
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| Fibrosis | Wound healed with scar tissue; normal function is not returned
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| First-degree burn | A burn that involves only the epidermis and whose symptoms include redness, pain, and swelling; the most common type of burn
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| Keratin | A hard, waterproof protein
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| Mediators of inflammation | Chemicals produced by damaged tissues and diffuse away from the damaged area causing any blood vessels they meet to dilate
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| Melanocytes | Cells found in the stratum basale that produce skin pigments called melanin
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| Papillae | bumps on the superficial edge of the dermis in direct contact with the epidermis (found on palmar & plantar surfaces & tongue)
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| Pathogens | Disease-causing foreign invaders
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| Regeneration | Wound healing with the same tissue that was damaged; normal function is returned
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| Sebum | A very oily, lipid-rich substance produced by the sebaceous gland to moisturize the skin and hair
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| Stratum basale | The deepest layer of the epidermis and the only one with cells that actively grow and divide to produce new epidermis
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| Subcutaneous layer | Layer of skin, technically not part of the skin, deep to the dermis and attaches skin to the rest of the body
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| Sweat glands | 4 types of exocrine glands that are located in the dermis (merocrine, apocrine, ceruminous, mammary)
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| Thin skin | Epidermis that contains hair follicles and lacks stratum lucidum.
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| Wound contracture | Scab formation that pulls the edges of the wound closer together as it dries.
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