Pls help set of ?'s
3. What is bone marrow like AND what is its main job?
4. Why is your spine such an important set of bones to have for your body?
5. What body organs do your ribs and skull protect?
6. How many bones are in BOTH hands and in BOTH feet? Why do we need so many bones in
our hands and feet?
7. What are joints?

3. Bone marrow is a hollow  space or deep cavity inside a bone where red, white blood cells and platelets are produced.

4. Your spine is important because, it connects all your nerves in your body to your brain and down to your feet.

5. Your ribs protect your heart and lungs. Your skull protects your brain.

6. 54 in both hands and 52 bones in both feet.

7. Joints-movement where bones meet.

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