7. Ratio of eosinophils in tissues versus p.b.:
300 – 500
times more in tissues
8. Diurnal variation of eosinophils:
When the
number of cells or amount of substance varies depending on time of day when sampled.
Eosinophils in
p.b. are highest at night
9. Basophil versus mast cell:
Mast cells are
slightly larger than basophils with slightly smaller and less soluble granules that contain
serotonin and proteolytic enzymes not found in basophil