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).
When you link the prefix peri-with the root word cardi, even though the root begins with a consonant, no combining vowel is necessary. Likewise, when you link the root word cardi with the suffix-itis, no combining vowel is necessary. In fact, in this instance, one of the i's is dropped. Pericarditis.