- Bone – Wikipedia
- This Wikipedia page provides comprehensive information about bones, including their types, structure, and composition. It covers various aspects such as the skeletal system, bone development, and the role of bones in the human body.
- Human skeleton – Wikipedia
- This Wikipedia article focuses on the human skeleton, providing details about its composition, the number of bones, and its role as the internal framework of the human body. It also covers topics such as bone health and the impact of farming on human bone structure.
- Long bone – Wikipedia
- The Wikipedia page on long bones offers information about this specific type of bone, including its structure, classification, and clinical significance. It also discusses the distribution of forces on long bones and their importance in the human skeletal system.
Citations:
[1] https://en.wikipedia.org/wiki/Bone
[2] https://en.wikipedia.org/wiki/Bone_(comics)
[3] https://en.wikipedia.org/wiki/Bone_(film)
[4] https://en.wikipedia.org/wiki/Human_skeleton
[5] https://en.wikipedia.org/wiki/Long_bone
A bone is a rigid organ that constitutes part of the skeleton in most vertebrate animals. Bones protect the various other organs of the body, produce red and white blood cells, store minerals, provide structure and support for the body, and enable mobility. Bones come in a variety of shapes and sizes and have complex internal and external structures. They are lightweight yet strong and hard and serve multiple functions.
| Bone | |
|---|---|
 A bone dating from the Pleistocene Ice Age of an extinct species of elephant | |
 A scanning electronic micrograph of bone at 10,000× magnification | |
| Identifiers | |
| MeSH | D001842 |
| TA98 | A02.0.00.000 |
| TA2 | 366, 377 |
| TH | H3.01.00.0.00001 |
| FMA | 5018 |
| Anatomical terminology | |
Bone tissue (osseous tissue), which is also called bone in the uncountable sense of that word, is hard tissue, a type of specialised connective tissue. It has a honeycomb-like matrix internally, which helps to give the bone rigidity. Bone tissue is made up of different types of bone cells. Osteoblasts and osteocytes are involved in the formation and mineralisation of bone; osteoclasts are involved in the resorption of bone tissue. Modified (flattened) osteoblasts become the lining cells that form a protective layer on the bone surface. The mineralised matrix of bone tissue has an organic component of mainly collagen called ossein and an inorganic component of bone mineral made up of various salts. Bone tissue is mineralized tissue of two types, cortical bone and cancellous bone. Other types of tissue found in bones include bone marrow, endosteum, periosteum, nerves, blood vessels and cartilage.
In the human body at birth, there are approximately 300 bones present; many of these fuse together during development, leaving a total of 206 separate bones in the adult, not counting numerous small sesamoid bones. The largest bone in the body is the femur or thigh-bone, and the smallest is the stapes in the middle ear.
The Greek word for bone is ὀστέον ("osteon"), hence the many terms that use it as a prefix—such as osteopathy. In anatomical terminology, including the Terminologia Anatomica international standard, the word for a bone is os (for example, os breve, os longum, os sesamoideum).
English
Pronunciation
- (Received Pronunciation) IPA(key): /bəʊn/
- (General American) enPR: bōn, IPA(key): /boʊn/
- (General Australian) IPA(key): /bəʉn/
- (New Zealand) IPA(key): /bɐʉn/
- Rhymes: -əʊn
Etymology 1
From Middle English bon, from Old English bān (“bone, tusk; the bone of a limb”), from Proto-Germanic *bainą (“bone”), from *bainaz (“straight”), from Proto-Indo-European *bʰeyh₂- (“to hit, strike, beat”).