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).
Ceteris paribus. From Wikipedia, the free encyclopedia. Ceteris paribus or caeteris paribus is a Latin phrase meaning with other things the same or all or other things being equal or held constant or  all other things being equal  or  all else being equal .