Bones Constantly Remodel Themselves
The skeleton is largely replaced over about a decade.
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Hands and Feet Contain About Half the Body's Bones
Each hand has 27 bones and each foot has 26.
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The Hyoid Is the Only Bone Not Connected to Another Bone
It sits in the neck and supports the tongue.
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Bone Marrow Produces Blood Cells
Red cells, white cells and platelets are made inside bones.
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The Femur Is the Longest and Strongest Bone in the Body
It runs from the hip to the knee.