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Haversian canals [i] (sometimes canals of Havers, osteonic canals or central canals) are a series of microscopic tubes in the outermost region of bone called cortical bone. They allow blood vessels and nerves to travel through them to supply the osteocytes .
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.
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.
1.1 Central California. 1.2 Great Basin. 1.3 North Coast. ... Major regions of California. ... San Francisco Bay Area
It covers approximately 18,000 sq mi (47,000 km 2), [1] about 11% of California's land area. The valley is bounded by the Coast Ranges to the west and the Sierra Nevada to the east. The Central Valley is a region known for its agricultural productivity. It provides a large share of the food produced in California.
In Central California, the system will have stations in Merced, Madera, Fresno, and the Kings–Tulare area. Planning is underway to extend the initial line to San Francisco/San Jose and Los Angeles. Freight rail is served by commercial railroads. Union Pacific Railroad and BNSF Railway operate mainline freight through the region in the Central ...
The UC team said California could meet about 15% its electricity demand with solar panels on all 4,000 or so miles of canal statewide. That’s a quarter of the way to the mandate for 60% climate ...
The San Luis Canal terminates at Kettleman City, where it connects with the state-built section of the California Aqueduct. With a capacity of 13,100 cubic feet per second (370 m 3 /s), it is one of the largest irrigation canals in the United States. [589] The Coalinga or Pleasant Valley Canal branches off the San Luis Canal towards the ...