Cortical cancellous bone graft is cadaver bone used in surgery to aid in the fusion process. When there is a "gap" in a fracture that needs to be filled this is sometimes placed to fill the hole. Your body will eventually take this on as it's own and hopefully fuse
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Cancellous tissue has spaces inside it, like a honeycomb. Compact tissue is solid and dense with no visible spaces.
Bone is considered anisotropic because it responds differently if forces are applied in different directions. Bone can handle large forces applied in the longitudinal plane (tension and compression); bone is not as strong in handling forces applied transversely across its surface.The differences between the properties of the cancellous and cortical bone contribute to the anisotropy of the bone. Cancellous bone provides bending strength, and cortical bone provides significant compressive strength.
Cortical bone, also known as compact bone is one of two main types of osseous tissues. Cortical bone is dense and forms the surface of bones, contributing 80% of the weight of a human skeleton. It is extremely hard, formed of multiple stacked layers with few gaps. The other major type of bone is trabecular or cancellous bone; it is spongy and makes up the bulk of the interior of most bones, including the vertebrae.
An osteon is the functional unit of cortical bone. Osteons contain osteocytes, which are cells that produce bone matrix.
These are referred to as associational connections when communication is between different parts of cortex in the same hemisphere. There also exists numerous fiber tracts between sub-cortical and cortical structures such as the optic radiation within the same hemisphere.
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Internal granular layer is the 4th layer (from 6 horizontal layers of neocortex).sensory areas = also called "granular cortical areas" because they have many granule neurons in their well-developed layer 4motor areas = also called "agranular cortical areas" because they have less granule neurons in their thin layer 4
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The cortical nephrons,from their name are almost entirely embedded within the cortex of the kidney.They have shortish loops of Henle that do not really extend far into the medulla. By contrast, the juxtamedullary nephrons have longs loops of Henle that do extend far into the medulla.The glomeruli of the juxtamedullary nephrons are typically close to the medulla (which is how these got their name)
The connection between a superiosteal abscess and osteomyelitis is that they are both conditions of the bones. A superiosteal abscess is found between the periosteum and cortical plate of a bone and osteomyelitis is an infection of the bone.
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