A&P FINAL 2.5

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Author:
rwischnewski
ID:
290878
Filename:
A&P FINAL 2.5
Updated:
2014-12-07 10:04:08
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FINAL A&P
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FINAL
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  1. a tough protein that fills skin cells and provides and environmental barrier is _______.
    keratin
  2. melanin has what beneficial effect?
    absorbs UV light
  3. fingerprints are caused by ________.
    epidermal ridges
  4. the immune system cells that live in the skin are ________.
    dendritic cells
  5. the stratum is composed of _________.
    dead cells
  6. why does exposed skin appear pale in cold weather?
    constriction of blood vessels
  7. the function of sebum is _________.
    to lubricate skin
  8. what does not differentiate bone from the other connective tissue?
    stores calcium
  9. new bone is produced by ________.
    osteoblasts
  10. T/F  osteoclasts are cells that: 
    release calcium from bone
    T
  11. T/F  osteoclasts are cells that: 
    secrete acid
    T
  12. T/F  osteoclasts are cells that: 
    break up collagen matrix
    T
  13. T/F  osteoclasts are cells that: 
    derived from bone cells
    F
  14. if a bone changes shape because of bone remodeling, it is because __________.
    new direction of stress
  15. half of the calcium in the blood is not readily usable because _________.
    it is bound to plasma proteins
  16. why does a rise in pH cause hypoglycemia?
    increased protein binding
  17. twitching, tremors, and tetany occur with hypoglycemia because _________.
    muscle cells are easier to depolarize
  18. calcitriol?
    works primary on the intestine
  19. calcitonin?
    • lowers blood calcium
    • stimulates new bone formation
  20. parathyroid hormone?
    • works primarily on the kidney
    • inhibits new bone formation
  21. calcitriol and parathyriod hormone?
    raises blood calcium
  22. fractures that occur because of sudden repetitive change in stress on a bone are _________.
    stress fractures
  23. fractures that occur because of weakened bone are _______.
    pathological fractures
  24. in children, fractures are more likely to occur at ________.
    epiphyseal plates
  25. T/F functions of the synovial fluid: 
    provides oxygen to the articular cartilage
    T
  26. T/F functions of the synovial fluid: 
    removes wastes from joint
    T
  27. T/F functions of the synovial fluid: 
    digests tissue debris in the joint
    T
  28. T/F functions of the synovial fluid: 
    reduces friction in the joints
    T

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