Above all, home security is all about peace of mind. So as you consider the DIY options, think about what will actually make you feel safe. Is video surveillance a big deal?
The osteon is the primary structure that makes up the hard outer layer of bones, which is generally known as â cortical bone .â Cortical bone, or compact bone, is dense, mature bone found in vertebrates such as mammals, amphibians, reptiles, and birds. It is this dense hard layer that gives a person or animal strength.
Each cylindrical unit within compact bone is an entire haversian system. The system includes lamellae, osteocytes, lacunae, canaliculi and a haversian canal. Lamellae are the thin layers that compile and eventually form bone. They contain collagen fibers that are arranged in a parallel array. Lamellae also contain a small amount of proteoglycans in addition to collagen.