Bones are rigid organs that form part of the endoskeleton of human body. They function to move, support, and protect the various organs of the body, produce red and white blood cells and store minerals.

Males and females have slightly different skeletons, including a different elbow angle. Males have slightly thicker and longer legs and arms; females have a wider pelvis and a larger space within the pelvis, through which babies travel when they are born.

The human body bones

Bone tissue is a type of dense connective tissue. Because bones come in a variety of shapes and have a complex internal and external structure they are lightweight, yet strong and hard, in addition to fulfilling their many other functions. One of the types of tissue that makes up bone is the mineralized osseous tissue, also called bone tissue, that gives it rigidity and a honeycomb-like three-dimensional internal structure. Other types of tissue found in bones include marrow, endosteum and periosteum, nerves, blood vessels and cartilage.

At birth a newborn baby has approximately 300 bones , whereas on average an adult human has 206 bones (these numbers can vary slightly from individual to individual). There are five types of bones in the human body: long, short, flat, irregular and sesamoid.

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