Haversian system
Haversian System
The Haversian System (pronunciation: /hævərʃən/), also known as the Osteon, is a fundamental functional unit of compact bone. Named after British physician Clopton Havers, who first described it in 1691, the Haversian System is a key component of the skeletal system.
Etymology
The term "Haversian System" is derived from the name of Clopton Havers, an English physician and anatomist. Havers made significant contributions to the understanding of the structure and function of bone, and the system was named in his honor.
Structure
The Haversian System is composed of concentric layers, or lamellae, of compact bone tissue that surround a central canal, the Haversian Canal. The Haversian Canal contains the bone's blood supplies and nerve fibers. The space between adjacent Haversian Systems is filled with interstitial lamellae, which are remnants of old Haversian Systems that have been partially removed during bone remodeling.
Function
The primary function of the Haversian System is to provide support and protection to the body. It also plays a crucial role in calcium storage and release, as well as in the production of blood cells in the bone marrow.
Related Terms
- Haversian Canal: The central canal that runs longitudinally through the Haversian System, containing blood vessels and nerves.
- Lamellae: The concentric layers of bone within the Haversian System.
- Osteocyte: A mature bone cell that maintains the bone matrix.
- Osteon: Another term for the Haversian System.
External links
- Medical encyclopedia article on Haversian system
- Wikipedia's article - Haversian system
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