Search results
Results from the WOW.Com Content Network
The channels are formed by concentric layers called lamellae, which are approximately 50 μm in diameter. The Haversian canals surround blood vessels and nerve cells throughout bones and communicate with osteocytes (contained in spaces within the dense bone matrix called lacunae) through connections called canaliculi.
Volkmann's canals, also known as perforating holes or channels, are anatomic arrangements in cortical bones that allow blood vessels to enter the bones from periosteum. They interconnect the Haversian canals (running inside osteons ) with each other and the periosteum.
Canals are human-made structures, built for water control, flood prevention, irrigation, and water transport. Their exact design varies depending upon the local importance of each function. Their exact design varies depending upon the local importance of each function.
On July 4, 1825, ground was broken for the canal at Licking Summit near Newark, Ohio. The canals were specified to have a minimum width of 40 feet (12 m) at the top, 26 feet (8 m) at the bottom, and a depth of 4 feet (1.2 m) feet minimum. These limits were often exceeded, and indeed it was cheaper to do so in most cases.
The dental canaliculi (sometimes called dentinal tubules) are the blood supply of a tooth. [4] Odontoblast process run in the canaliculi that transverse the dentin layer and are referred as dentinal tubules. [5] The number and size of the canaliculi decrease as the tubules move away from the pulp and toward the enamel or cementum.
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 bone's blood supplies. The boundary of an osteon is the cement line. Each Haversian canal is surrounded by varying number (5-20) of concentrically arranged lamellae of bone matrix.
Canal Winchester was founded in 1828 by Reuben Dove and John Colman. When construction of the Ohio & Erie Canal came through Dove's wheat field, he wanted to sue the state. The canal workmen instead convinced him that he would be better off laying out a town, because the area was midway between Columbus and Lancaster. [6]
This constitutes the so-called capsule of the space. Each lacuna is generally occupied by a single cell, but during the division of the cells, it may contain two, four, or eight cells. Lacunae are found between narrow sheets of calcified matrix that are known as lamellae ( / l ə ˈ m ɛ l i / lə- MEL -ee ).