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What are the five types of leukocytes?
neutrophils, eosinophils, basophils, lymphocytes, and monocytes
what are the granulocytes?
neutrophils, eosinophils, and basophils
what are agranulocytes?
lymphocytes and monocytes
Neutrophils
description - light purple color, multi lobed, most abundant leukocyte
func. - phagocytize microbes such as bacteria at local wound sites, bacterial infections - acute infections
% of leukocytes - 70%
eosinophils
description - orange- red with bluish colored bi-lobed nucleus
func. - phagocytize parasitic infections like worms and allergic infections
% of leukocytes - 3%
Basophils
description - dark blue, very rare, bi-lobed
func. migrate to injured tissue and release histamine and heparin; similar to mast cells and produce similar inflammatory response; allergic reactions
% of leukocytes - <1%
lymphocytes
description - large blue - purple nucleus and surrounded by a pale blue cytoplasm
func. - main cells in lymph nodes; immune response to infection; t cells and b cells; respond to bacterial and viral infections, autoimmune diseases, cancer
% of leukocytes - 20-30%
monocytes
description - twice the size of erythrocytes; purple blue horseshoe shaped nucleus
func. - migrates outside of bloodstream and becomes macrophages (very large phagocytic cells); bacterial (or viral) infections
% of leukocytes - 2-8%
