Anatomy

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Author:
Noelle
ID:
190303
Filename:
Anatomy
Updated:
2012-12-20 12:32:30
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Semester test review
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  1. Describe skeletal cartialge?
    no blood vessels, dense C.T
  2. Types of Cartialge?
    • Hyaline
    • Fibro
    • Elastic
  3. -Provides support, flexibility, and resilience
    - most abundant
    -ends of bones
    hyaline
  4. -contains elastic fibers
    elastic
  5. -collagen fibers
    -tensile strength
    -disks in vertebrae
    firbro
  6. Longer than wide?
    long bones
  7. cubed-shap(wrist)
    short bones
  8. W/in tendons (patella)
    sesamoid bones
  9. thin, flat, and slightly curved
    flat bones
  10. complicated shapes (vertebrae)
    irregular bones
  11. Functions of skeleton?
    • Support: body organs
    • Protection: brain, and spinal cord
    • Movement: muscle action
    • Storage: Vitamins and minerals
    • Blood cell formation: in marrow cavaties
    • triglyceride: energy storage
  12. Textures of bones?
    • Compact: dense and hard
    • Spongy: trabeculae
  13. What is the diaphysis?
    long part of bone
  14. Osteocytes?
    mature bone cells
  15. Osteoblasts?
    bone-forming cells
  16. Osteoclasts?
    bone destroying cells
  17. Osteogenic?
    Stem cells(produce bone cells)
  18. Sharpey's fibers?
    holds periostium to bone
  19. Location of red marrow cavities in adults?
    trabecular ends of long bones
  20. Haversian system is the same as?
    osteon
  21. Two kinds of laellae?
    • 1. circumfereatial: around osteon
    • 2.interstitial: in between osteon systems
  22. Tiny cannals of osteon?
    Canaliculi
  23. What type of cell lives in lacunae?
    Osteocyte
  24. Rich in blood vessels, rungs longitudinal
    Haversian canal
  25. Organic composition of bone?
    • 1. Cells: osteocytes, blasts,clasts
    • 2. Fibers: collagen
    • 3.proteins
  26. Inorganic material of bone?
    • 1. calcium salts
    • 2. hard mineralized
  27. Is an osteoid organic material or inorganic?
    organic
  28. Another word for ossification?
    osteogenesis
  29. bone tissue formation?
    bone development
  30. -Replaces hyaline cartilage
    -begins at 2nd month of birth
    -post natal growth until early adulthood
    -bone modeling and repair is lifelong
    ossification
  31. two types of ossification?
    • 1. intramembraneous
    • 2. endochondral
  32. Flat bone ossification, between fibrous membrane
    intramembraneous
  33. Replaces hyaline cartilage, long bones
    Endochondral
  34. Length is in between cells?
    Interstial
  35. thickness growth, inside layer of periosteum?
    appositional
  36. Length in long bones: 4 zones to epiphyseal plate?
    • 1.osteogenic
    • 2.calcification
    • 3.hypertrophic
    • 4.proliferation
  37. Regulation of growth?
    Hormones:pituitary gland, thyroid gland, estrogen and testosterone
  38. Bone remodeling requires what 2 processes?
    • 1. bone deposition
    • 2.bone resorption
  39. Occurs where bone is injured or needs strength?
    bone deposition
  40. accomplished by osteoclasts, dissolve bone
    bone reasorption
  41. Bones are inadquately mineralized?
    -bones are weak and soft
    -painful w/ bearing body weight
    osteomalacia
  42. Diseae in children
    -bones bow
    -epiphyseal plate cannot be calcified
    rickets
  43. bone mass is reduced
    -more porous and light bones
    osteoporosis
  44. high ratio of spongy bone to compact bone
    -weak bones
    pagets

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