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NurseReview.Org - Skin Hair & Nails

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http://Forum.NurseReview.Org - Skin Hair & Nails

Published in: Health & Medicine, Lifestyle
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  • 1. Skin, Hair and Nails
  • 2. Skin
    • 2 Layers of Skin
      • Outer Epidermis
      • Inner supportive Dermis
    • 3 rd Layer of Subcutaneous Adipose
  • 3. Epidermis
    • Protective
    • Stratified into several zones
      • Basal cell layer = forms new skin cells
      • Keratin = major ingrediant
      • Melanin = # but amt of production varies
    • Uniformly thin except on palms and soles
    • Avascular
  • 4.  
  • 5.  
  • 6.  
  • 7.  
  • 8.  
  • 9.  
  • 10. Vesicle, Bulla
  • 11.  
  • 12.  
  • 13. Skin Color
    • Melanin
    • Carotene pigment
    • Vascular beds in the dermis
    • Affected by skin thickness & edema
  • 14. Dermis
    • Supportive layer
    • Collagen
    • Elastic quality for stretching
    • Nerves, sensory receptors, bld. vessels, lymphs
    • Epidermis appendages = hair follicles, sebacceous glands, sweat glands embedded in the dermis
  • 15. Hair
    • Important because?
    • Threads of keratin
    • 2 types
      • Vellus hair- over body
      • Terminal hair
  • 16. Glands
    • Sebaceous Glands
      • Sebum = protective lipid substance
        • Lubricates hair& skin
        • prevents water loss
        • everywhere but palms & soles
    • Sweat Glands
      • Eccrine = skin surface- sweat
      • Apocrine = thick, milky secretion – axilla, anogenital, nipples, navel.
  • 17. Nails
    • Keratin
    • Color
    • Condition
    • Shape, Profile sign
  • 18. Function of Skin
    • Protection
    • Prevents penetration
    • Perception
    • Temperature regulation
    • Identification
    • Communication
    • Wound repair
  • 19. Function of Skin
    • Absorption & excretion
    • Vitamin D – ultraviolet light > cholesterol

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