Integumentary System

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Integumentary System

  1. 1. Integumentary System Anatomy and Physiology
  2. 2. System Includes <ul><li>Sweat glands </li></ul><ul><li>Oil Glands </li></ul><ul><li>Hair </li></ul><ul><li>Nail </li></ul><ul><li>Layers of skin </li></ul><ul><li>Cutaneous membranes </li></ul><ul><li>Skin pathogens </li></ul><ul><li>Sensory receptors </li></ul>
  3. 3. The Skin <ul><li>The skin is the largest organ on or in the body </li></ul><ul><li>Protects the body from foreign agents and germs </li></ul><ul><li>Can sense temperature, pain, touch, and pressure </li></ul><ul><li>The skin secrete fluids through the sweat glands and sebaceous </li></ul><ul><li>The skin has three main layers </li></ul>
  4. 4. Three layers of skin Skin Epidermis (the outer membrane Layer) Dermis ( the middle layer) Subcutaneous (the deepest layer)
  5. 5. Epidermis <ul><li>Has stratified squamous epithelium, that consist of scale-like cells </li></ul><ul><li>Does not have a blood supply or connective tissues </li></ul><ul><li>Depends on nourishment from the deeper layers of skin </li></ul><ul><li>Contains two cells called Keratin and Melanocytes </li></ul><ul><li>The basal layer is the deepest layer within the epidermis </li></ul>
  6. 6. Deeper layers <ul><li> Dermis </li></ul><ul><li>Compose of connective tissues </li></ul><ul><li>Compose of collagen fibers </li></ul><ul><li>Subcutaneous </li></ul><ul><li>House cells called lipocytes </li></ul><ul><li>Act as an insulation for heat and cold </li></ul><ul><li>Contains fatty tissues </li></ul>
  7. 7. Accessory Organs <ul><li>Hair </li></ul><ul><li>Nails </li></ul><ul><li>Sweat Glands </li></ul><ul><li>Sebaceous </li></ul>
  8. 8. Hair Hair Shaft Grows toward the Skin surface Follicle Hair root force older keratin Cells to move upward
  9. 9. Nails <ul><li>Nail body is the flat-plate keratin that covers the ends of fingers and toes, or nail bed </li></ul><ul><li>Nail root is the base of the nail and protected by the cuticle </li></ul><ul><li>The free edge is the edge of the nails </li></ul><ul><li>Lunula is the half-circle area at the base of the nail </li></ul>
  10. 10. Sweat Glands <ul><li>Sudoriferous glands are found throughout the body, and found in the dermis </li></ul><ul><li>Sweat duct is the surface of the skin </li></ul><ul><li>Sweat pore is the opening of the skin </li></ul>
  11. 11. Skin Pathogens <ul><li>Skin lesions </li></ul><ul><li>Skin discolorations </li></ul><ul><li>Skin diseases </li></ul><ul><li>Skin cancers </li></ul><ul><li>Burns or infections </li></ul><ul><li>Skin viruses </li></ul>
  12. 12. Diagnostic Procedures <ul><li>Clinical Laboratory Tests </li></ul><ul><li>Culture and sensitivity </li></ul>
  13. 13. Therapeutic Procedures <ul><li>Skin Grafting </li></ul><ul><li>Surgical procedures </li></ul><ul><li>Plastic surgery procedures </li></ul>
  14. 14. The End

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