You may have noticed that the bones you identified comes in variety of shapes. Why do you think some bones, such as humerus and femur, have rounded ends? Why do you think other bones such as vertebrae and carpals have flat sides?
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Anonymous
ANSWERS: 1
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Bones with rounded ends are ment to move, like a hinge, the way your arm bends at the elbow. Flat sided bones sit on top of each other, and don't move much, like the spine. :-)
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