👉 Pericytosis is a process in which blood cells, called erythrocytes, undergo a series of changes to form microvilli. These microvilli are small, thin sheets that line the walls of vessels and help in the transport of oxygen and nutrients to tissues. The process of pericytosis occurs during platelet activation, a type of cell death that is part of the normal cellular turnover process. The term "pericytial" refers to the microvilli that