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Long bone vs flat bone4/3/2024 ![]() ↑ Biology for the Medical Sciences, P.How Many Bones Are There in the Human Body?. it protects other organs and provides a framework for muscles to attach. Flat bones are mainly found in the skull, ilium, sternum and ribcage and are made of two thin layers of compact bone, with a layer of cancellous bone in between them. They provide strength, structure and mobility. the shaft contains a cavity filled with bone marrow. These bones are expanded into broad, flat plates, as in the cranium (), the ilium (), sternum and the rib cage. Long bones, such as the femur (thigh bone), are made up of a long shaft and two ends. Flat bones are bones whose principal function is either extensive protection or the provision of broad surfaces for muscular attachment. In the human skeleton, there are two main types of bone: long bones and flat bones, and three others - short, irregular and sesamoid. These bones make up the skeletal system which helps support the body and aid in movement. ![]() The end of the long bone opposite to the head is known as the base. The shaft refers to the elongated sections of long bone, and the neck the segment between the head and shaft (or body). Short bones, such as the carpals, are approximately equal in length, width, and thickness. Long bones, such as the femur, are longer than they are wide. The head of a bone usually refers to the distal end of the bone. Section Review Bones can be classified according to their shapes. Children have more bones (270 as an infant), as bones in the skull are separate and have not yet fused together ( ossification). Bones are commonly described with the terms head, neck, shaft, body and base. ![]() There are two-hundred and six bones in the adult human body. ![]()
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