All the white blood cells are able to move like an amoeba, and can migrate out of blood vessels into the surrounding tissues. Note-it is easy to confuse the different leucocytes in blood smears. To identify them, you need to look for the shape of the nucleus, and compare their size, relative to that of a red blood cell.
peri-. a prefix meaning âabout,â âaroundâ (perimeter; periscope), âenclosing,â âsurroundingâ (pericardium), ânearâ (perigee; perihelion).
-teâ¢a (-ti É) the dense, fibrous connective layer of tissue covering all bones except where ligaments attach and on the surfaces of joints. [1590â1600; < New Latin; Late Latin periosteon, n. use of neuter of Greek periÃ³steos around the bones. See peri-, osteo-] per`iâ¢osâ²teâ¢al, per`iâ¢osâ²teâ¢ous, adj. per`iâ¢osâ²teâ¢alâ¢ly, adv.