| Bones come in a variety of shapes and have a | | | | There are five types of bones in the human body |
| complex internal and external structure, allowing them | | | | long, short, flat, irregular and sesamoid. Long Bones |
| to be lightweight yet strong and hard, while fulfilling | | | | are longer than wide, they are composed of a long |
| their many other functions. One of the types of | | | | handle (the diaphysis) plus two articular (joint) |
| tissues that makes up bones is the mineralized | | | | surface, called epiphyses. They are comprised mostly |
| osseous tissue | | | | of bone, but are generally thick enough to hold |
| Bone is living tissue that makes up the body's | | | | considerable and spongy bone marrow hollow in the |
| skeleton. Bone is a connective tissue largely | | | | center (the medullary cavity). Short bones are |
| composed of an organic protein; collagen and the | | | | roughly cube-shaped, and have only a thin layer of |
| inorganic mineral hydroxyapatite. Bones are rigid | | | | compact bone surrounding a spongy interior. Flat |
| organs that form part of the endoskeleton of | | | | bones are thin and generally curved, with two parallel |
| vertebrates. Bones function to move, support, and | | | | layers of compact bones sandwiching a layer of |
| protect the body, produce red and white blood cells | | | | spongy bone. |
| and store minerals. | | | | Flat bones are thin and generally curved, with two |
| Minéralisés bones also drew the bone, which | | | | parallel layers of compact bones sandwiching a layer |
| gives the bones of their rigidity and honeycomb-type | | | | of spongy bone. Most of the bones of the skull are |
| three-dimensional internal structure. Other types of | | | | flat bones, as is the sternum. Irregular bones do not |
| tissue in the bone marrow particular, the periosteum, | | | | fit into the above categories. They consist of thin |
| nerves, blood vessels and cartilage. The main bone | | | | layers of compact bone surrounding a spongy interior. |
| tissue, bone tissue is relatively hard and lightweight | | | | As implied by the name, their shapes are irregular and |
| composite material, formed mainly of calcium | | | | complicated. The bones of the spine and hips are |
| phosphate in the arrangement chemical called calcium | | | | irregular bones. Sesamoid bones are bones embedded |
| hydroxylapatite (bone tissue that gives the bones of | | | | in tendons. Since they act to hold the tendon further |
| their rigidity ). It is relatively high, but compressive | | | | away from the joint, the angle of the tendon is |
| strength poor tensile strength, meaning it resists | | | | increased and thus the force of the muscle is |
| forces grow well, but not the thrust levels. | | | | increased. |