Hem/Onc, Renal, Repro, and Pulm Anatomy Flashcards
anisocytosis
varying sizes
poikilocytosis
varying shapes
life span of RBC
120 days
glucose use in RBCs
90% glycolysis, 10% HMP shunt
What channel do RBCs have
chloride-bicarb antiporter to allow export of HCO3 and transport of CO2
platelet lifespan
8-10 days
vWF receptor
GpIb
Fibrinogen receptor
GpIIb/IIIa
What granules do platelets contain
Dense granules and alpha granules
What do dense granules have
ADP and calcium
What do alpha granules have
vWF and fibrinogen
What is the WBC differential from highest to lower
Neutrophils Like Making Everythign Better PMNs 54-62% Lymphocytes (25-33%) Monocytes (3-7%) Eosinophils 1-3% Basophils 0-0.75%
What granules due PMNs have
small and numerous granules and larger, less numerous azurophilic granules (lysosomes)
PMN small granule contents
ALP, collagenase, lysozyme, and lactoferrin
PMN lysosome contents
Proteinases, acid phosphatase, myeloperoxidase, and beta-glucuronidase
How many lobes is hypersegmented PMNs
5 or more lobes
Shape of monocyte nucleus
Kidney-Shaped. with extensive frosted glass cytoplasm.
What activates macrophages
gamma-interferon
What is cell surface marker for macrophages
CD14
Actions of eosinophils
Helminths (major basic protein).
Highly phagocytic for antigen-antibody complexes.
Produces histaminase and arylsulfatase (helps limit reaction following mast cell degranulation)
Causes of eosinophlia
NAACP Neoplasia Asthma Allergic Processes Connective tissue diseases Parasites (invasive)
Nucleus of eosinophil
Bilobate
Basophil granules
Basophilic granules contaiing heparin, histamine, and leukotrienes
When can you see basophilia
Particularly CML
Mast cell reaction
Binds Fc portion of IgE to membrane. IgE cross-links upon antigen binding, causing degranulation, which release histamine; heparin, and eosinophil chemotactic factors
What prevents mast cell degranulation
Cromolyn sodium (asthma PPx)
What receptors on B cells
CD19 and CD20
What receptors on T cells
CD3, CD4/8, CD28 (costimulatory signal)
What does CD (e.g. CD20) stand for
Cluster of Differentiation
What are the most common lymphocytes
T cells (80%)
What are the subdivisions of the renal circulation
Renal artery to Segmental artery to Interlobar to Arcuate to Interlobular
Interlobar art. run along what
Along the sides of the medullary pyramids
Arcuate art. runs along what
Runs along the top of the medullary pyramids