Osseous tissue
Osseous Tissue
Osseous tissue, or bone tissue (pronunciation: /ˈɒsiəs ˈtɪʃuː/), is a type of specialized connective tissue that forms the structural elements of the skeleton.
Etymology
The term "osseous" is derived from the Latin word "osseus," meaning "bony" or "of bone." The term "tissue" comes from the French word "tissu," meaning "a weave," which refers to the way biological tissue is often formed of interwoven cells and materials.
Definition
Osseous tissue is a hard, dense connective tissue that provides structural support, protection to vital organs, and is a primary site for calcium storage. It is composed of osteocytes, osteoblasts, and osteoclasts, which are embedded in a matrix of collagen fibers and mineralized with hydroxyapatite, a form of calcium phosphate.
Types of Osseous Tissue
There are two types of osseous tissue: compact bone and spongy bone.
- Compact bone is dense and forms the outer layer of all bones. It provides strength and rigidity.
- Spongy bone (also known as cancellous or trabecular bone) is found inside bones and is lighter and less dense than compact bone. It is characterized by a honeycomb-like structure.
Related Terms
- Osteogenesis: The process of bone formation.
- Osteoporosis: A condition characterized by a decrease in bone density, leading to an increased risk of fracture.
- Osteoarthritis: A type of arthritis that occurs when flexible tissue at the ends of bones wears down.
See Also
External links
- Medical encyclopedia article on Osseous tissue
- Wikipedia's article - Osseous tissue
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