What is the function of the osteon?
It provides protection and strength to bones. Compact bone tissue consists of units called osteons or Haversian systems. Osteons are cylindrical structures that contain a mineral matrix and living osteocytes connected by canaliculi, which transport blood. They are aligned parallel to the long axis of the bone.
What are the 5 parts of an osteon?
Terms in this set (10)
- Osteon. A basic unit of structure in compact bone.
- Lamellae. Plates of collagen fiber.
- Collagen. Major component in connective tissue.
- Periosteum. A specialized connective tissue covering all bones.
- Spongy bone. Trebeculae, lattice like structures.
- Volkmann’s canal.
- Haverisian (central) canal.
What are the main structures of an osteon?
The osteon consists of a central canal called the osteonic (haversian) canal, which is surrounded by concentric rings (lamellae) of matrix. Between the rings of matrix, the bone cells (osteocytes) are located in spaces called lacunae.
What is the function of the Volkmann canal?
Volkmann’s canals are any of the small channels in the bone that transmit blood vessels from the periosteum into the bone and that communicate with the haversian canals. The perforating canals provide energy and nourishing elements for osteons.
How does the structure of an Osteon contribute to the overall strength?
It provides protection and strength to bones. Osteons in compact bone tissue are aligned in the same direction along lines of stress, helping the bone resist bending or fracturing. Therefore, compact bone tissue is prominent in areas of bone at which stresses are applied in only a few directions.
What is Osteon histology?
Osteon (or Haversian System) Osteons (or Haversian system) are the structural unit of compact bone. They are cylindrical structures of concentric layers of bone (lamellae) aligned with the long axis of a bone. Haversian Vessels – remnants of blood vessels and nerve fibers are seen in some canals.
What is the function of Osteons in compact bone?
Osteons – Functional units of compact bone, created by a network of bone cells and blood vessels. Osteocyte – A cell which function to maintain and repair bone tissue. Osteoblast – Cells which lay down new bone tissue, adding the matrix.
Which statement characterizes central canals of Osteons?
it contains a central canal. it is also called a Haversian system. which statements characterize central canals of osteons? they contain osteocytes.
What is osteon histology?
What are the functions of haversian and Volkmann canals?
Haversian canal and Volkmann’s canal are two types of canals found in compact bones. Both allow blood vessels and nerve fibres to travel through them. Volkmann’s canals interconnect Haversian canals with each other and with the outer covering of the bone. Both types of canals provide nourishment to the osteons.
What is the main function of the osteon system?
Thus, the main function of this system is to facilitate the supply of oxygen, as well as nutrients to the bone cells. It is the central canal that is responsible for the nerve supply, as well as the vascular supply to the bone. An osteon comprises a long, hollow central canal that is surrounded by concentric layers called lamallae.
What is the long axis of the osteon?
The long axis of the osteon is parallel to the long axis of the bone.Each osteon has a cylindrical structure that consists of the following components: ✦ Haversian canals are located at the center. Small blood vessels that are present in the central canal perform the function of supplying blood to the osteocytes.
What is the central canal of the osteon?
This central canal is referred to as the Haversian canal. The long axis of the osteon is parallel to the long axis of the bone.Each osteon has a cylindrical structure that consists of the following components: ✦ Haversian canals are located at the center.
What is the cement line of the osteon?
Starting from the outside of the osteon and moving inward, the osteon is rimmed by the cement line, a band of less stiff material with an important role in resisting fracture . Inside the cement line are concentric layers of bone, lamellae, made of mineralized, oriented collagen known as the bone matrix.