bone`

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Author:
cgat45
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146463
Filename:
bone`
Updated:
2012-04-08 21:50:30
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bone review
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  1. Bone tissue formation is also termed as ____________.
    Bone deposition
  2. The breaking down of bone tissue is also termed
    Bone resorption
  3. The shaft of the bone is termed as the
    Diaphysis
  4. The distal and proximal ends of the bone that contains the red bone marrow are termed as the
    Epiphyses
  5. The region where Diaphysis joins the epiphyses is termed as the
    Metaphysis
  6. The thin layer of hyaline cartilage that covers the epiphysis is termed as the
    Articular cartilage
  7. The connective tissue that surrounds the bone is termed as the
    Periosteum
  8. The space within the Diaphysis that contains the yellow bone marrow is termed as the __________.
    Medullary cavity
  9. The membranous lining over the medullary cavity is the ___________.
    Endosteum
  10. Extracellular matrix of bone tissue consists mainly of
    Mineral salts
  11. The stem cells of bone tissue that give rise to osteoblasts are
    Osteogenic cells
  12. These cells of the bone tissue secrete collagen fibers and start the calcification
    Osteoblasts
  13. The process, in which mineral salts are deposited, crystallized, and hardened is
    Calcification
  14. These cells of the bone tissue continue calcification and communicate with other adjacent cells are _______________.
    Osteocytes
  15. These cells of the bone tissue degrade collagen fibers and mineral salts
    Osteoclasts
  16. The majority of our skeletal system consists of __________.
    Compact bone
  17. The difference between spongy and compact bone are all of the following except ___________.
    a. Compact bone lamellae are arranged in osteons
    b. Compact bone is filled with red bone marrow
    c. Spongy bone lamellae are arranged in trabeculae
    d. Spongy bone contain many open spaces within extracellular matrix
    Compact bone is filled with red bone marrow
  18. Within an osteon, the opening for blood vessels is termed as the
    Central haversian canal
  19. Within an osteon where the processes of osteocytes lie within the lacunae is termed as the
    Canaliculus
  20. Within an osteon, the rings of calcified extracellular matrix are termed as
    Concentric lamellae
  21. Within an osteon between lamellae where osteocytes occur is termed as the
    Lacuna
  22. In the spongy bone, where do you find the lamellae, lacunae, osteocytes, and canaliculi?
    In the trabeculae
  23. Why is the central Haversian canal in the middle of the osteons where blood vessels run through missing in spongy bone?
    Because the trabeculae is surrounded by open spaces so the blood vessels can run between the trabeculae themselves
  24. Ossification occurs during
    • Bone development in embryo, fetus, and childhood
    • b. Bone remodeling in adults
    • c. Bone repair after fracture
  25. During which type of embryonic ossification does the bone form directly from membranous sheets of embryonic cells?
    Intramembranous ossification
  26. Which type of embryonic ossification starts with a cartilage model of the bone and is gradually replaced by bone?
    Endochondral ossification
  27. Steps of Intramembranous ossification in order are: 1- formation of trabeculae and red bone marrow. 2- development of an ossification center with osteoblasts. 3- development of compact bone and periosteum. 4- calcification by osteocytes.
    2-4-1-3
  28. Steps of Endochondral ossification in order are: 1-growth of cartilage model. 2-development of primary ossification center in middle of bone. 6- development of articular cartilage and epiphyseal plate. 3- development of secondary ossification center in epiphyses. 4- development of cartilage model and perichondrium. 5- development of medullary cavity
    4-1-2-5-3-6
  29. What part of the bone is responsible for growth of bones in length in children
    Epiphyseal plate
  30. In what zone of the epiphyseal plate do the mature chondrocytes lie?
    Zone of hypertrophic cartilage
  31. What zone of the epiphyseal plate anchors it to the epiphysis?
    Zone of resting cartilage
  32. In what zone of the epiphyseal plate is new cartilage being produced?
    Zone of proliferating cartilage
  33. In what zone of the epiphyseal plate is old cartilage being replaced by bone?
    Zone of calcified cartilage
  34. Bone growth in width occurs when
    An osteon forms in the periosteum
  35. By which bone tissue cells is bone deposition done?
    Osteoblasts
  36. By which bone tissue cells is bone resorption done
    Osteoclasts
  37. Functions of the skeletal system include
    • Support and protection
    • b. Movement and mineral homeostasis
    • c. Blood cell production and triglyceride storage
  38. Which skeletal bones protect the brain?
    Cranial bones
  39. Which skeletal bones protect the heart and lungs?
    Ribs
  40. Which skeletal bones protect the spinal cord?
    Vertebrae
  41. The process by which blood cells are produced is
    Hemopoiesis
  42. Bone is a ___________.
    Calcium reservoir
  43. Which hormone releases calcium into the blood stream when calcium in blood decreases?
    Parathyroid hormone
  44. Which hormone inhibits the release of calcium into the blood when calcium in the blood increases?
    Calcitonin
  45. Which gland secretes the parathyroid hormone
    Parathyroid gland
  46. Which gland secretes calcitonin
    Thyroid gland

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