A Bugatti Veyron 16.4 Super Sport, the world's fastest road legal production car with a top speed of 431 km/h (268 mph). Top speed (mph) by year. This is a list of the world's record-breaking top speeds achieved by a street-legal production car (as opposed to concept cars or modified cars).
Spongy (cancellous) bone is lighter and less dense than compact bone. Spongy bone consists of plates (trabeculae) and bars of bone adjacent to small, irregular cavities that contain red bone marrow.The canaliculi connect to the adjacent cavities, instead of a central haversian canal, to receive their blood supply.ompact bone consists of closely packed osteons or haversian systems. 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.
Ends: The ends of long bone are actually not compact as the shaft. They are made up of spongy (cancellous) bone. In cancellous bone the bone substance to bone spaces ratio is a smaller quantity.This means that there is little bony tissue and more empty spaces in this portion of the bone.he cortex is actually the compact part of the long bone. The strength of the bone which makes it capable to withstand all the stresses is mainly due to this cortex. In the cortex the ratio of bone substance to bone spaces is a large quantity.