Bone

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The bones of a human foot.

Bones are parts of the human or animal skeleton of vertebrates. They are stiff organs which make up the endoskeleton. Our body is made of flesh and blood built on a framework of bones. Without our bones, we could not stand up or move about. They also protect organs inside our body.[1] The skull protects the brain and the ribs protect the heart and lungs. The teeth support the facial muscles and help us smile. The number of bones in a human's neck is the same as a giraffe's.[1]

What they do[change | change source]

The bones are the framework of the body. Without them we would be a pile of skin on the floor and would not be able to move. The bones are also very important for our own protection, that is, the rib cage protects the heart and lungs, cranium (skull) protects the brain, pelvis protects the reproductive organs. Bones need to be maintained by taking regular exercise and by having lots of calcium from foods like cheese, milk, and dark leafy greens such as spinach. The red bone marrow in the middle of the bigger bones is what makes the red blood cells that we need.

References[change | change source]

  1. 1.0 1.1 My First Book on the Human Body. Bath: Robert Frederick. 2004. ISBN 0-7554-3506-0.