Heme - FA Anat/Phys/Patho p.396-421 Flashcards
Life span of RBC?
120 days
Life span of platelet?
8-10 days
Normally leukocyte count range?
4000–10,000 cells/mm3.
Membrane of RBC contains — antiporter,
Cl-/HCO3
Name the vWF receptor?
GpIb
Erythrocytosis = — = —- hematocrit
polycythemia incr
Dense granules in Platelets contain —- and α granules contain —.
ADP, Ca2+
vWF, fibrinogen, fibronectin, platelet factor 4
Normal Basophils %?
(0–0.75%)
Poikilocytosis =
varying shapes
Name Fibrinogen receptor?
GpIIb/IIIa.
Neutrophyls specific granules contain 4 components: “CALL”
ALP collagenase lysozyme lactoferrin (traps iron)
What are Azurophilic granules?
lysosomes
Anisocytosis =
varying sizes (seen in thalasemia, spherocytosis)
Azurophilic granules contain what 4 components?
- proteinases
- acid phosphatase
- myeloperoxidase
- β-glucuronidase (in liver)
Important neutrophil chemotactic agents:
C5a, IL-8, LTB4, kallikrein, platelet-activating factor
How does gram neg bacteria initiate septic shock?
Lipid A from bacterial LPS binds CD14 on macrophages
Incr in myeloid proliferation is observed by the incr of what cells during infection or CML?
band cells (immature neutrophils)
Macrophages are activated by
γ-interferon.
Which 2 cells are packed with basophylic granules?
Basophyls Mast cell
Monocytes differentiates into —- in tissues.
macrophage
Macrophages are antigen-presenting cell via —.
MHC II.
Extensive “frosted glass” cytoplasm referrers to what type of cells?
monocyte
Basophilia is uncommon, but can be a sign of what path?
myeloproliferative disease, particularly CML.
Which cells expresses MHC class II and Fc receptors on surface?
Dendritic cell, macrophage