Integumentary system

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  • 1. Integumentary System
    Shanna Visarraga and Lacey Branch
  • 2. Structure of the Integumentary
  • 3. Functions
    Protect
    Prevent water loss
    Temperature regulation
    Metabolic regulation
    Immune defense
    Sensory receptor
    Excretion by means of secretion
  • 4. Epidermis
    Skin color
    Hemoglobin, melanin, carotene
    Thick skin
    Palms of hands, soles of feet
    Thin skin
    Most of the body
    Fingerprints
  • 5. Dermis
    Papillary layer
    Dermal papillae
    Epidermal ridges
    Reticular layer
    “Network”
    Stretch marks, wrinkles,
    and lines of cleavage
  • 6. Subcutaneous
    Not considered part of the integumentary
    Composed of areolar connective tissue and adipose connective tissue
  • 7. Accessory Organs: Nails
    Nails
  • 8. Nail Disorders
    Onychomycosis
    Fungal infection
    Treatment: oral fungal medication
    Yellow Nail Syndrome
    Nail growth thickens and stops
    Often a sign of respiratory disease
  • 9. Nail Disorders
    Spoon nail
    Nails are concave instead of convex
    Often a sign of iron deficiency
    • Beau’s lines
    • 10. Run horizontally across nail
    • 11. Can be sign of chronic malnutrition
  • Accessory Organs: Hair
    Hair
    Lanugo
    Vellus
    Terminal hair
  • 12. Functions of Hair
    Protection
    Heat retention
    Facial expression
    Sensory reception
    Visual identification
    Chemical signal dispursal
  • 13. Exocrine glands of the skin
    Sweat glands
    Merocrine
    Thermoregulation, secretion, and protection
    Apocrine
    Secretes into hair follicles
  • 14. Exocrine glands of the skin
    Sebaceous
    Sebum
    Oily, waxy secretion
  • 15. Burns
    First Degree
    Redness, pain, slight edema
    Second Degree
    Red, blistered, painful
    Third Degree
    Skin loss and grafting
  • 16. Skin Cancer
    Basal cell carcinoma
    Most common
    Least dangerous
    Usually on face
    Appearance is small, shiny, and enlarges with pearly edge
    Treatment: surgical removal
  • 17. Skin Cancer
    Squamous cell carcinoma
    Appears on scalp, ears, lower lip, or back of hand
    Red, scaly, and elevated edges
    Surgical removal
    • Note: May metastasize to other parts of body
  • Skin Cancer
    Malignant melanoma
    Most deadly
    Unusual changes in mole
    Surgical removal
    Asymmetry
    Border
    Color
    Diameter
  • 18. Acne
    Comedo
    Open comedo is called a “black head”
    Closed is called a “white head”
    Papule
    Dome-shaped
    Mixture of white blood cells, dead cell, and bacteria
  • 19. Acne
    Nodule
    Similar to papule
    Extends into deeper layers of skin
    Will cause scarring
    • Cyst
    • 20. Fluid filled
    • 21. Can become severely inflamed and painful
    • 22. Will cause scarring
  • Integumentary system: the good, the bad, and the ugly