Anatomy of Bones
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Questions and Answers

What is the main function of osteocytes in bone?

  • Phagocytic cells responsible for resorption and remodeling of bone
  • Stem cells that can differentiate into osteoblasts
  • Maintaining bone matrix and releasing calcium ions (correct)
  • Synthesizing organic components of bone matrix

    • What is the primary function of osteoblasts in bone?

  • Synthesis of organic components of bone matrix (correct)
  • Maintaining bone matrix and releasing calcium ions
  • Stem cells that can differentiate into osteoblasts
  • Resorption and remodeling of bone

    • What is the main function of osteoclasts in bone?

  • Stem cells that can differentiate into osteoblasts
  • Synthesizing organic components of bone matrix
  • Phagocytic cells responsible for resorption and remodeling of bone (correct)
  • Maintaining bone matrix and releasing calcium ions

    • What is the percentage of water in bone matrix?

    <p>20%</p> Signup and view all the answers

    What is the primary component of inorganic matter in bone matrix?

    <p>Calcium phosphate</p> Signup and view all the answers

    What is the function of osteogenic cells in bone?

    <p>Stem cells that can differentiate into osteoblasts</p> Signup and view all the answers

    What is the structure of bone cells that are responsible for synthesizing organic components of bone matrix?

    <p>Cuboidal cells</p> Signup and view all the answers

    What is the site of osteogenic cells in bone?

    <p>Periosteum and endosteum</p> Signup and view all the answers

    What is the characteristic feature of the surface of large cells facing the bone?

    <p>Striated border</p> Signup and view all the answers

    Where are compact bones typically found?

    <p>In the shafts of long bones</p> Signup and view all the answers

    Which type of bones are phalanges?

    <p>Short bones</p> Signup and view all the answers

    What type of tissue forms the outer fibrous layer of the periosteum?

    <p>Collagenous fibers</p> Signup and view all the answers

    What lines the Haversian canal?

    <p>Endosteum</p> Signup and view all the answers

    Which bone structure is known for containing connective tissue, blood vessels, and nerves?

    <p>Haversian canal</p> Signup and view all the answers

    Which structure connects Haversian canals with each other and the periosteum?

    <p>Volkmann's canals</p> Signup and view all the answers

    What is typical of the microscopic structure of decalcified compact bone?

    <p>Haversian system</p> Signup and view all the answers

    Which type of bone lamellae runs under the periosteum?

    <p>External circumferential lamellae</p> Signup and view all the answers

    Which lamellae are located inner to the endosteum?

    <p>Internal circumferential lamellae</p> Signup and view all the answers

    What type of bone structure is formed by irregularly arranged plates of bone trabeculae?

    <p>Cancellous bone</p> Signup and view all the answers

    Which cells fix the periosteum to the underlying bone?

    <p>Sharpey’s fibers</p> Signup and view all the answers

    What do Haversian systems lack?

    <p>Bone marrow cavities</p> Signup and view all the answers

    What extends from the periosteum to the outer circumferential lamellae?

    <p>Sharpey’s fibers</p> Signup and view all the answers

    What structure consists of irregular bone lamellae with scattered osteocytes?

    <p>Cancellous bone</p> Signup and view all the answers

    Which component is not found in a Haversian system?

    <p>Bone marrow cavities</p> Signup and view all the answers

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