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Diagram of a typical long bone showing both cortical (compact) and cancellous (spongy) bone. 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.
Chronic allograft nephropathy (CAN) is a kidney disorder which is the leading cause of kidney transplant failure, [1] occurring months to years after the transplant.
The trabecular bone consists of cancellous bone that is located between the alveolar bone proper and the cortical plates. [ 15 ] The alveolar structure is a dynamic tissue which provides the jawbone with some degree of flexibility and resilience for the embedded teeth as they encounter numerous multi-directional forces.
In the cranial bones, the layers of compact cortical tissue are familiarly known as the tables of the skull; the outer one is thick and tough; the inner is thin, dense, and brittle, and hence is termed the vitreous table. The intervening cancellous tissue is called the diploë.
The transplant is called an allograft, allogeneic transplant, or homograft. Most human tissue and organ transplants are allografts. It is contrasted with autotransplantation (from one part of the body to another in the same person), syngenic transplantation of isografts (grafts transplanted between two genetically identical individuals) and ...
An allograft contains many of the beneficial characteristics of nerve autograft, such as three-dimensional microstructural scaffolding and protein components inherent to nerve tissue. [3] One of the adverse effects of nerve allotransplantation is the immunogenic response.
The marginal zone, along with the cortical zone, make up the 6 layers that form the cortex. This zone is the predecessor for layer I of the cortex. Astrocytes form an outer limiting membrane to interact with the pia. In humans it has been found that the cells here also form a subpial layer. [1]
Despite this association with the cortical reaction, however, evidence has yet to be found supporting that the tissue-type plasminogen activator is a cortical granule component. Furthermore, mRNA coding for tissue-type plasminogen activator is not translated until after most cortical granules have formed within the oocyte.