Circulating Blood-Downing Flashcards
Serum =
plasma - clotting proteins
Normal erythrocyte count in males and females
males: 5x10^6/mm3
females: 4.5x10^6/mm3
RBC diameter
7.7 µm
RBC energy
anaerobic glycolysis and pentose phosphate pathway
Roulous
stacked RBCs on slides
Lifespan of RBCs
120-130 days
Lifespan of platelets
8-10 days
Normal platelet count
400,000/mm3
Megakaryocytes are found
in bone marrow
Two areas of platelets
granulomere (central)
hyalomere (peripheral)
Lamba granules of platelets contain
lysosomes
Diapedesis occurs most commonly in this area
post-capillary venule
Granulocytes
neutrophils
basophils
eosinophils
Agranulocytes
monocytes
lymphocytes
Neutrophil amount in differential
50-70%
Nuclei of neutrophils
muli-lobed
Azurophilic granules in neutrophils
primary: 20%
reddish purple
contain myeloperoxidases
Neutrophilic granules
specific: 80%
Hydrolases active at neutral or alkaline pH
2 killing mechanisms of neutrophils
- enzymatic
- reactive oxygen species production
Neutrophilic granule function
bacteriocidal
Azurophilic granule function
bacterial digestion
What enzyme produces reactive oxygen species in lysosomes?
NADPH oxidase
Eosinophil differential count
1%
Eosinophil nucleus
bilobular
Which amino acid is high in eosinophils?
arginine
Eosinophils contain these two crystalline substructures
major basic protein
eosin
Eosinophils contain these to crystalline substructures
major basic protein
eosinophilic cationic protein
What to eosinophils fight?
- allergies
- inflammatory reactions
- parasitic worm invasions
Basophil differential
0.5%
Basophil nucleus
difficult to see
Basophil function
initiate allergic and inflammatory responses–similar to mast cells
Basophil function
initiate allergic and inflammatory responses–similar to mast cells
Basophils have Fc receptors for fragments of
IgE
Granulocytes are mitotic/amitotic in blood
amitotic
Lymphocytes are mitotic/amitotic in blood
mitotic
Lymphocyte differential %
20-40%
Types of lymphocytes
B-cells
T-cells
NK-cells
B-cell fates
Plasma cells –> antibodies
Memory B-cells
B-cell lymphocyte %
15%
T-cell lymphocyte %
80-90%
3 type of T-cells
CD4+ helper T-cells
CD8+ cytotoxic T-cells
supressor T-cells
NK cell functions
kill virally infected and neoplastic cells
Monocyte differential %
2-8%
Monocyte nucleus
kidney-bean shaped, vacuoles seen in cytoplasm
Granulocytes in lymph indication
underlying pathology
Lymph coagulates quickly/slowly
slowly
Is lymph highly oxygenated?
no
Chylomicrons
fat + plasma proteins
Hemoconia
plasma “junk”
Blood cells exit BM through
sinusoidal capillaries