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% (C)</p> Signup and view all the answers

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

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

What is the function of osteogenic cells in bone?

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

What is the site of osteogenic cells in bone?

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

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

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

Where are compact bones typically found?

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

Which type of bones are phalanges?

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

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

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

What lines the Haversian canal?

<p>Endosteum (D)</p> Signup and view all the answers

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

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

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

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

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

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

Which type of bone lamellae runs under the periosteum?

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

Which lamellae are located inner to the endosteum?

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

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

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

Which cells fix the periosteum to the underlying bone?

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

What do Haversian systems lack?

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

What extends from the periosteum to the outer circumferential lamellae?

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

What structure consists of irregular bone lamellae with scattered osteocytes?

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

Which component is not found in a Haversian system?

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

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