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).
perk 1. v. perked, perkÂ·ing, perks. v. intr. 1. To stick up or jut out: dogs' ears that perk. 2. To carry oneself in a lively and jaunty manner. v. tr. To cause to stick up quickly: The dog perked its ears at the noise. adj. Perky. perk up. 1. To regain or cause to regain one's good spirits or liveliness.