Pathological anatomy is the science that studies the pathophysiological and morphological alterations of the disease. It studies the disease at an organic, tissue, cellular, subcellular, and molecular level.

Gel electrophoresis is a widely used technique in life science laboratories to separate macromolecules such as DNA, RNA, and proteins. In this technique, molecules are separated according to size and electrical charge.

The cryostat is a piece of equipment used in the processing of samples for histological or histopathological diagnosis or identification. It is mainly used to freeze and obtain frozen tissue sections or samples that have not been previously fixed by chemical methods, to avoid losing some important characteristics necessary for observation.