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white blood cells (morphology (basophils (10-14micro m
a few hrs to a…
white blood cells
morphology
basophils
10-14micro m
a few hrs to a few days
usually bilobed or trilobed
lobes usually not ditinctly visible
cos cells are studded with granules
numerous coarse blue black staining granules
in cytoplasm
inflammatory response
allergic & antigen response
(release histamine-causing vasodiaation
lymphocyte
10-14micro m
nucleus
occupies 80--90% of cell
centrally placed
cytoplasm may not be visible
or seen as a thin ridge around nucleus
lymphocytes are memory cells
may live for years
B lymphocytes produce antibodies
& operate primarily in lymphatic system
T lymphocytes are involved in
cellular immune response
monocytes
12-24 micro m
live for 3 days
nucleus occupies almost half of the cell
centrally or eccentrically placed nucleus
nucleus usually kidney shaped
cytoplasm looks hazy
are the body's immune surveillance
presents antigens to t cells
become tissue macrophages
phagocytosis of pathogens
eosinophils
10-14micro m
3-12 days
bilobed
thick strands connect the lobes
spectacle shaped nucleus
cyto-deep pink/red
coarse brick red granules
cyto not usually visible due to obscuring by
granules
defense against parasites
parasitic infections
allergic rxns
(inflammatory
neutrophil
10-14micro m
nucleus
multilobed 2-6
lobes connected by thin strands
in band form
sausage shaped nucleus
cytoplasm
looks pale pink
fine pink or blue granules
(polychromatophilic stainig
life span in blood
7 hrs
function
1st responders to microbial infection
bacterial/ fungal infection
immune defences
are the mobile units of the body's
protective system
according to the type of cytoplasmic granules
and shape of nuclei
they are divided into
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classificaion & count
total WBC 4000-11000
neutrophils- 3000-6000 50-70%
lymphocyte- 1500-4000 20-40%
monocyte- 300-600 2-8%
eosinophils 150-300 1-4%
basophils 0-100 0.4%
neutrophils
like
making
everything
better
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