Haversian canals (sometimes canals of Havers, named after British physician Clopton Havers) are a series of microscopic tubes in the outermost region of bone called cortical bone that allow blood vessels and nerves to travel through them. Each haversian canal generally contains one or two capillaries and nerve fibres.
It is started at certain sites known as centers of ossification each of which is a point where lying down of lamellae (bone formation) is started by the activity of osteoblasts. Osteoblasts are bone forming cells and secrete collagen and other substances that form the ground substance of bone. The centers of ossification may be primary or ...
Ossification is the process of the synthesis of bone from cartilage. There are two types of ossification—intramembranous and endochondral ossification.
Ossification (or osteogenesis) in bone remodeling is the process of laying down new bone material by cells called osteoblasts. It is synonymous with bone tissue formation.
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.
Osteocytes secrete growth factors that accelerate bone repair following a fracture, and healthy osteocytes can sense and direct the ongoing repair of microdamage in your skeleton. Sclerostin, a protein produced by osteocytes, plays an important role in bone remodeling, but it is only one of many substances produced by osteocytes.
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.