Bone Growth, Remodelling, and Repair

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Questions and Answers

What is the process that involves the partial resorption of bone tissue formed earlier, while simultaneously laying down new bone at a rate exceeding that of bone removal?

  • Osteogenesis (correct)
  • Bone remodeling
  • Bone plasticity
  • Bone resorption

In growing bones, what maintains each bone's general shape while increasing its mass?

  • Bone resorption
  • Bone modeling (correct)
  • Osteoclast activity
  • Osteoblast activity

At what rate can bone turnover be in young children compared to adults?

  • 500 times faster
  • 200 times faster (correct)
  • 50 times faster
  • 100 times faster

What ensures that bone tissue remains plastic and capable of adapting its internal structure in response to changing stresses?

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

Which process involves coordinated cellular activities for both bone resorption and bone formation in adults?

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

How do orthodontic appliances affect bone and teeth positions in the jaw?

<p>Bone forms on the side where traction is applied. (B)</p> Signup and view all the answers

What is the main reason for cranial bone growth according to the text?

<p>Formation of bone tissue by the periosteum between the sutures. (D)</p> Signup and view all the answers

Where are osteoprogenitor stem cells found in bones according to the text?

<p>In the periosteum, endosteum, and marrow of bones. (A)</p> Signup and view all the answers

What is crucial for efficiently repairing bone fractures and damage based on the text?

<p>Using cells, signaling molecules, and processes already active in bone remodeling. (D)</p> Signup and view all the answers

Why does bone normally have an excellent capacity for repair as mentioned in the text?

<p>Presence of osteoprogenitor stem cells and good vascularization of bones. (C)</p> Signup and view all the answers

How are surgically created gaps in bones filled with new bone according to the text?

<p>Especially when periosteal tissue remains. (C)</p> Signup and view all the answers

What is the main process by which bone fractures are repaired?

<p>Fibrocartilage callus formation (B)</p> Signup and view all the answers

In a person with hydrocephalus, how is the size of the skull affected?

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

What are the three phases involved in fracture healing?

<p>Reactive, Reparative, and Remodeling (B)</p> Signup and view all the answers

How does bone plasticity allow the bone to respond to the growth of the brain?

<p>By forming a skull of adequate size (A)</p> Signup and view all the answers

Which phase of fracture healing involves remodeling back to the bone's original contour?

<p>Remodeling to original bone contour (B)</p> Signup and view all the answers

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