The Best What Is Leukocyte Ideas. Web leukocytes transmigrate between endothelial cells at the endothelial cell junction, which opens transiently and subsequently closes by localized stimuli. White blood cells, or leukocytes (greek;

White blood cells, or leukocytes (greek; In contrast to erythrocytes, leukocytes can move about under their own power with ameboid movement. Web white blood cell, cellular component of blood that helps defend the body against infection.