Bone Fracture Repair
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Questions and Answers

What type of tissue is produced in the initial stage of bone repair?

  • Fibrous tissue
  • Cartilagelike tissue
  • Fibrocartilagelike tissue (correct)
  • Osseous tissue

Which type of cells are activated during bone repair?

  • Osteoclasts
  • Chondrocytes
  • Osteoblasts
  • Periosteal fibroblasts (correct)

What is the primary function of periosteal fibroblasts in bone repair?

  • To resorb bone tissue
  • To lay down new bone tissue
  • To produce bone matrix
  • To produce an initial soft callus (correct)

What is the composition of the initial soft callus in bone repair?

<p>Fibrocartilagelike tissue (B)</p> Signup and view all the answers

What triggers the production of the initial soft callus in bone repair?

<p>Bone fracture (B)</p> Signup and view all the answers

What is the primary function of bone remodeling in compact bone?

<p>To replace old osteons with new ones (A)</p> Signup and view all the answers

Which cells invade the tunnels in compact bone during remodeling?

<p>Osteoprogenitor cells from the endosteum or periosteum (A)</p> Signup and view all the answers

What is the function of osteoblasts in bone remodeling?

<p>To secrete osteoid and form new bone tissue (C)</p> Signup and view all the answers

What is the structure formed by osteoblasts during bone remodeling?

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

What is the pattern of bone secretion by osteoblasts during remodeling?

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

What is the primary mechanism of bone growth and repair?

<p>Continuous turnover of cells and matrix by osteoblasts and osteoclasts (D)</p> Signup and view all the answers

What occurs throughout life in bones?

<p>Bone growth and repair (D)</p> Signup and view all the answers

Which of the following cells is involved in bone growth and repair?

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

What is the term for the process by which bones are reshaped and replaced?

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

Which of the following is a function of osteoblasts?

<p>Building new bone tissue (C)</p> Signup and view all the answers

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