Principles of Human Anatomy and Physiology Chapter 11
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Questions and Answers

What does a bone scan help to identify?

  • Abnormal bone density
  • Areas of increased metabolic activity (correct)
  • Bone structure and shape
  • Bone age and growth rate

What is the function of the epiphyseal plate in bone growth?

  • To form the bone marrow cavity
  • To enable bone to increase in length (correct)
  • To allow bone to grow in width
  • To increase bone density

What happens to the cartilage cells on the diaphyseal side of the epiphyseal plate?

  • They remain dormant
  • They are replaced by muscle tissue
  • They are destroyed and replaced by bone (correct)
  • They are produced by mitosis

What is the term for the appearance of a bone that has completed its growth in length?

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

During what age range do epiphyseal plates typically close?

<p>18 to 25 years (A)</p> Signup and view all the answers

What is the term for areas of decreased metabolic activity in a bone scan?

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

What happens to cartilage cells at the epiphyseal line?

<p>They stop dividing and bone replaces the cartilage (B)</p> Signup and view all the answers

What is the main function of osteoclasts in bone remodeling?

<p>To destroy old bone tissue (C)</p> Signup and view all the answers

What type of growth is responsible for bone growth in thickness?

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

What is the role of estrogen in bone growth?

<p>It is responsible for closure of the growth plate (C)</p> Signup and view all the answers

What is the result of oversecretion of hGH during childhood?

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

What is the process of bone growth in width?

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

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