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).
Phrasal Verbs: perk up To regain or cause to regain one's good spirits or liveliness.To refresh the appearance of: New furniture and paint perked up the room. Origin of perk. Possibly Middle English perken to perch from perk rod, perch probably from Medieval Latin perca and from Old French perche, perce both from Latin pertica rod; see perch 1.