A & P Leukocytes
Contain large cytoplasmic granules that stain dark blue or purple with basic dyes
basophils
Increased with parasitic worm infections or in cases of chronic allergic inflammation
eosinophils
The production of leukocytes is called
leukopoiesis
T-cells are a category of:
lymphocyte
The cytoplasm is a thin ring around the nucleus
lymphocyte
There are several types and some are involved in antibody production
lymphocyte
A deficiency in leukocyte number may lead to an increase in opportunistic infections.
true
When trying to diagnose an infection that alters the percentages of leukocyte types found in the blood, it is useful for clinicians to perform a
white blood cell differential count
Which are the least numerous of the leukocytes?
Basophils
Which leukocytes are granulocytes? a: Neutrophils b: Eosinophils c: Lymphocytes d: Monocytes e: Basophils f: Erythrocytes
a, b, e
In a patient, the differential count shows neutrophil levels are very high. This may indicate a(n)
bacterial infection
Release heparin, which prevents the formation of clots
basophils
Release histamine, which promotes inflammation
basophils
The least common of all white blood cells
basophils
Contain cytoplasmic granules that stain bright red
eosinophils
Under the microscope, a leukocyte has a bilobed nucleus and pink granules in the cytoplasm. This is probably a(n)
eosinophils
Natural killer cells derive from T-lymphoblasts and monocytes derive from the granulocyte line.
false monocyte is derived from the monocyte line and NK is derived from the Lymphoid stem cell
The smallest of the white blood cells
lymphocyte
Enlarge and become macrophages which engulf foreign substances
monocyte
The largest of the white blood cells
monocyte
The type of leukocyte that will migrate in the blood and take up residence in the tissues as a macrophage is a(n)
monocyte
Remain in the blood for a short time (10-12 hours), move into other tissues, phagocytize microorganisms and other foreign substances.
neutrophil
The most common type of white blood cells
neutrophil
The type of leukocyte that is very active during a bacterial infection is a(n
neutrophil
Two- to four-lobed nuclei
neutrophil
Which are the most numerous of the leukocytes?
neutrophils
