A&P Chapter 20 Integumentary System
What is the largest organ in the body? <ul><li>The skin!  The skin is part of the Integumentary System and contains 12-15%...
Functions of the Integumentary System <ul><li>The Integumentary system has multiple roles in homeostasis. </li></ul><ul><l...
Functions of the Integumentary System continued <ul><li>Regulation –  the skin serves as a temperature regulator </li></ul...
Functions of the Integumentary System continued <ul><li>Sensory reception  –  </li></ul><ul><li>Millions of receptors are ...
Functions of the Integumentary System continued <ul><li>Secretion  –  </li></ul><ul><li>Sweat glands produce sweat. </li><...
Not just skin… <ul><li>The Integumentary system is comprised of  accessory structures . </li></ul><ul><li>Nails </li></ul>...
Lifespan considerations <ul><li>Children </li></ul><ul><li>Skin conditions can be acute or chronic, local or systems and s...
Patient education <ul><li>Skin care is an important part of hygiene. </li></ul><ul><li>Moisturizing is important. </li></u...
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A&P Integumentary

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A&P Integumentary

  1. 1. A&P Chapter 20 Integumentary System
  2. 2. What is the largest organ in the body? <ul><li>The skin! The skin is part of the Integumentary System and contains 12-15% of the body’s total weight. </li></ul><ul><li>Two distinct layers occur in the skin. </li></ul><ul><li>Dermis – connective tissue located under the epidermis ; contains nerve endings, sensory receptors capillaries and elastic fibers. </li></ul><ul><li>Epidermis – the outer most layer of the skin which contains pigment </li></ul>
  3. 3. Functions of the Integumentary System <ul><li>The Integumentary system has multiple roles in homeostasis. </li></ul><ul><li>Protection – the skin protects internal structures from harmful agents </li></ul><ul><li>Melanin – protects the underlying structures from ultraviolet light </li></ul><ul><li>Produces Vit D works with calcium to benefit the body </li></ul><ul><li>Protects the body from excess fluid and electrolyte loss </li></ul>
  4. 4. Functions of the Integumentary System continued <ul><li>Regulation – the skin serves as a temperature regulator </li></ul><ul><li>Too hot? Sweating and vasodilatation </li></ul><ul><li>Too cold? Shivering and vasoconstriction </li></ul>
  5. 5. Functions of the Integumentary System continued <ul><li>Sensory reception – </li></ul><ul><li>Millions of receptors are located in the skin for sensations of pain, touch heat, cold and pressure. </li></ul><ul><li>Receptors send messages to the brain which trigger a response </li></ul>
  6. 6. Functions of the Integumentary System continued <ul><li>Secretion – </li></ul><ul><li>Sweat glands produce sweat. </li></ul><ul><li>Sebaceous glands secrete oil for lubrication. </li></ul>
  7. 7. Not just skin… <ul><li>The Integumentary system is comprised of accessory structures . </li></ul><ul><li>Nails </li></ul><ul><li>Sebaceous glands </li></ul><ul><li>Sweat glands </li></ul><ul><li>Hair </li></ul>
  8. 8. Lifespan considerations <ul><li>Children </li></ul><ul><li>Skin conditions can be acute or chronic, local or systems and some are congenital </li></ul><ul><li>Skin infections present as systemic infections with fever and malaise. </li></ul><ul><li>Children under 10, chap more easy </li></ul><ul><li>Older Adult </li></ul><ul><li>Skin looses elasticity causing wrinkles </li></ul><ul><li>Watch for malignant skin lesions </li></ul><ul><li>Grey hair, dry and brittle </li></ul><ul><li>Nails become flat , discolored, dry and brittle </li></ul>
  9. 9. Patient education <ul><li>Skin care is an important part of hygiene. </li></ul><ul><li>Moisturizing is important. </li></ul><ul><li>Importance of sunscreen </li></ul><ul><li>Avoid sunburn. </li></ul><ul><li>Medications, such as antihypertensive medication, make patients more susceptible to sunburn. </li></ul>

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