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Unformatted text preview: Skin, Hair and Nails
The Integumentary System Skin
Functions: Protection Water balance Vitamin D synthesis Sensory input Thermoregulation Communication Skin Structure Epidermis Dermis Hypodermis Skin Color Eumelanin Pheomelanin Carotene Hemoglobin Skin abnormalities Albinism Genetically inherited Lack of melanocytes Vitiligo Not fully understood Vitamin B deficiency WBC attack and destroy melanocytes in certain areas Freckles, Moles and Birthmarks Freckles = flat melanized patches Genetic UV exposure Lentigens Freckles, Moles and Birthmarks Moles = raised melanized skin Congenital moles Skin cancer Freckles, Moles and Birthmarks
Birthmarks (Hemangiomas) Capillary hemangiomas Cavernous hemangioma Port-Wine Stains Macular Stains Acne (acne vulgaris) Clogged hair follicles Propionibacterium acnes Myths Stress Chocolate Dirt Acne Treatment Light and Heat Destroy sebaceous glands and/or P. acnes Antibiotics (oral and cream) Kill P. acnes, dry up oils Skin treatments (Dermal abrasion/ chemical peels) Exfolliate and open clogged pores Hair
Function Insulation Protection Sensory Information Indicator of sexual maturity Hair Structure Follicle Hair Shaft Root Bulb Sebaceous glands Apocrine glands Hair Growth Hair Issues Nails Nail Diseases and Traumas Leuconychia ...
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This note was uploaded on 04/27/2009 for the course BIOL 240 taught by Professor Mcleod during the Spring '08 term at Kansas.
- Spring '08