lymphocyte
agranuar
t cell
agranular
basophil
granular
monocyte (macrophage)
agranular
eosinophil
granular
b cells
agranular
neutrophill
granular
splen/o
spleen
thym/o
thymus
path/o
disease
immun
immune
py/o
pus
angi/o
vessel
hem/o
blood
hist/o
tissue