nekrozy

Nekrozy, also known as necrosis, is a biological process that results in the death of living cells. It is a form of cell death that occurs when cells are unable to maintain their structural and functional integrity due to various insults, such as trauma, infection, or toxic substances. Necrosis is characterized by the loss of cellular organelles, membrane integrity, and ultimately, the release of cellular contents into the surrounding tissue.

There are several types of necrosis, including coagulative necrosis, liquefactive necrosis, caseous necrosis, fat necrosis, and gangrenous necrosis. Each type has distinct features and is associated with different underlying causes. For example, coagulative necrosis is often seen in myocardial infarction, where the heart muscle cells die and turn into a solid, brownish mass. Liquefactive necrosis, on the other hand, is characterized by the liquefaction of tissue, often seen in bacterial infections.

Necrosis is distinct from apoptosis, another form of cell death, in that it is often associated with inflammation and tissue damage. It can also lead to the formation of granulation tissue, which is a type of scar tissue that helps to repair damaged tissue. However, if necrosis is extensive or occurs in critical organs, it can lead to organ failure and even death.

The study of necrosis is important in various fields, including pathology, medicine, and biology. Understanding the mechanisms of necrosis can help in the development of treatments for diseases associated with cell death, such as ischemic heart disease, stroke, and certain types of cancer.