Human Skeleton 6

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Questions and Answers

What is the outer layer of a bone that is visible when holding it?

  • Cancellous layer
  • Compact bone layer (correct)
  • Bone marrow
  • Periosteum

Which layer of the bone resembles a sponge in appearance?

  • Cancellous layer (correct)
  • Compact bone layer
  • Bone marrow
  • Periosteum

What is the purpose of the periosteum layer surrounding the bone?

  • To store fat for energy
  • To protect the bone from damage
  • To create blood cells
  • To provide the bone with necessary nutrients and support (correct)

Which part of the bone is responsible for creating blood cells?

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

How many bones does the average adult human have in their body?

<p>206 bones (C)</p> Signup and view all the answers

What happens to some bones as a person grows?

<p>They turn from cartilage to bone (D)</p> Signup and view all the answers

At what age do certain cartilage areas in the body start to turn into bone?

<p>Between ages 2 and 6 (D)</p> Signup and view all the answers

Why are bird's bones even lighter than human bones?

<p>Because they are hollow (D)</p> Signup and view all the answers

What is the function of the spine mentioned in the text?

<p>To protect the spinal cord and allow bending and twisting (C)</p> Signup and view all the answers

How many bones make up a person's spine?

<p>33 (D)</p> Signup and view all the answers

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