chemical sensors in the brain and blood vessels that identify changing levels of oxygen and carbon dioxide. the pull exerted by large proteins in the plasma portion of blood that tends to pull water from the body into the bloodstream. the pressure within a blood vessel that tends to push water out of the vessel.
Each osteon consists of concentric layers, or lamellae, of compact bone tissue that surround a central canal, the Haversian canal. The Haversian canal contains the boneâs nerve and blood supplies.The osteon, or Haversian system, is the fundamental functional unit of much compact bone. Osteons, roughly cylindrical structures that are typically several millimeters long and around 0.2 mm in diameter.he space between osteons is occupied by interstitial lamellae, which are the remnants of osteons that were partially resorbed during the process of bone remodelling. Osteons are connected to each other and the periosteum by oblique channels called Volkmannâs canals.
Osteocytes are mature osteoblasts that have become trapped within the very bone matrix they produced. Osteocytes continue to form bone to some degree, which is important for maintaining the strength and health of the bone matrix.However, osteocytes perform functions that extend far beyond simple maintenance.steocytes are mature osteoblasts that have become trapped within the very bone matrix they produced. Osteocytes continue to form bone to some degree, which is important for maintaining the strength and health of the bone matrix.