Bone

Bones are rigid organs that figure out the part of the endoskeleton of vertebrates. Bones job to move, support, and protect the body, produce red and white blood cells and store minerals. Bones come in a variety of shapes and have a complex internal and external structure, allowing them to be lightweight yet strong and hard, while fulfilling their many other functions. One of the types of tissues that makes up bones is the mineralized osseous tissue, also called bone tissue, that gives bones their rigidity and honeycomb-like three-dimensional inside structure. Other tissue types found in bones include marrow, the periosteum, nerves, blood vessels and cartilage.
There are five main functions of bones.
* Protection — Bones can serve to protect internal organs, such as the skull protecting the brain or the ribs protecting the abdomen.
* Shape — Bones provide a frame to keep the body supported.
* Blood production — The marrow, located within the medullary cavity of long bones and the interstices of cancellous bone, produces blood cells in a process called haematopoiesis.
* Mineral storage — Bones act as reserves of minerals important for the body, most notably calcium and phosphorus.
* Movement — Bones, skeletal muscles, tendons, ligaments and joints function together to generate and transfer forces so that individual body parts or the whole body can be manipulated in three-dimensional space. The interaction between bone and muscle is studied in biomechanics.