How much do all the bones in the body weigh?
Total bone weight depends on how much the person’s entire body weighs. Bones make up about 15% of a person’s total body weight. For example, the bones of a person weighing 100 pounds would weigh about 15 pounds. Are bones alive? Yes! In fact bones contain thousands of living cells that are replaced as they die. Like other organs in the body, blood brings food and oxygen to bones. The blood also removes waste – you might say that blood takes out the garbage! What is bone? Bone is dense and hard yet, slightly elastic. It is made up of different layers of bone tissue, cartilage, blood vessels, and other tissue. The outer layer is compact bone. It is very hard and strong. The inside layer is called spongy bone and it does look something like a kitchen sponge! In the center of the bone is marrow. Within the bone marrow the body makes red blood cells. What is bone marrow? In the center of bone is a jelly like matter called bone marrow. Bone marrow is the heart of the body’s blood factory. No
