bone
Sign in to saveA bone is a rigid organ that constitutes part of the skeleton in most vertebrate animals. Bones protect the organs of the body, produce red and white blood cells, store minerals, help regulate acid-base homeostasis, provide structure and support for the body, and enable mobility and hearing. Bones come in a variety of shapes and sizes and have complex internal and external structures.
AI overview
A bone is a rigid organ that forms the skeleton in most vertebrate animals and serves multiple vital functions, including protecting internal organs, producing blood cells, storing minerals, and supporting the body's structure. Bones enable movement and hearing while maintaining the body's chemical balance, and they vary widely in shape and size with complex internal and external structures.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Anatomy.Name
- Bone
- Anatomy.Latin
- os, ossis
- Anatomy.Greek
- ὀστέον (ostéon)
- Anatomy.Image
- Left femur of extinct elephant, Alaska, Ice Age Wellcome L0057714.jpg
- Anatomy.Caption
- A bone dating from the Pleistocene Ice Age of an extinct species of an elephant, possibly a mammoth
- Anatomy.Image2
- Bertazzo S - SEM deproteined bone - wistar rat - x10k.tif
- Anatomy.Caption2
- A scanning electronic micrograph of a Wistar rat's bone at 10,000× magnification
via Wikipedia infobox
Article
37 sectionsContents
- Gross anatomy
- Terminology
- Functions
- Mechanical
- Synthetic
- Metabolic
- Tissue
- Cortex
- Trabeculae <span class="anchor" id="Cancellous bone"></span>
- Marrow
- Vascular supply
- Histology and physiology
- Osteoblast
- Osteocyte
- Osteoclast
- Composition
- Deposition
- Development
- Remodeling
- Volume
- Clinical significance
- Fractures
- Tumors
- Cancer
- Diabetes
- Other painful conditions
- Osteoporosis
- Bone health
- Osteology
- Other animals
- Society and culture
- Additional images
- See also
- References
- Sources
- Further reading
- External links
A bone is a rigid organ that constitutes part of the skeleton in most vertebrate animals. Bones protect the organs of the body, produce red and white blood cells, store minerals, help regulate acid-base homeostasis, provide structure and support for the body, and enable mobility and hearing. Bones come in a variety of shapes and sizes and have complex internal and external structures.
Bone tissue (also known as osseous tissue or bone in the uncountable) is a form of hard tissue, specialised connective tissue that is mineralized and has an intercellular honeycomb-like matrix, which helps to give the bone rigidity. Bone tissue is made up of different types of bone cells: osteoblasts and osteocytes (which form and mineralise bone), osteoclasts (which resorb bone), and modified or flattened osteoblasts (lining cells that form a protective layer on the bone surface). The mineralised matrix of bone tissue has an organic component of mainly ossein, a form of collagen, and an inorganic component of bone mineral, made up of various salts. Bone tissue comprises cortical bone and cancellous bone, although bones may also contain other kinds of tissue including bone marrow, endosteum, periosteum, nerves, blood vessels, and cartilage.