WorksheetsThrombocytes
Total questions: 10
Worksheet time: 7mins
Controls the vascular permeability and blood flow rate
endothelium
subendothelium
vascular endothelium
none of the above
Necessary for platelet adhesion to collagen
tissue plasminogen
prostacyclin
von Willebrand factor
thrombin
Tissue plasminogen activator is released and activates the fibrinolytic system
endothelium
subendothelium
vascular endothelium
all of the above
A platelet aggregation inhibitor and vasodilator
(a)
Hereditary Vascular Defects
Hemorrhagic telangiectasia
Ehlers-Danlos syndrome
Scurvy
qualitative platelet defects
Stimulates vasoconstriction when vessel injury occurs
(a)
Stimulates platelet aggregation and vasoconstriction
Serotonin
Thromboxane A2
Actomyosin
PF4
Provides a surface for fibrin formation, limiting the hemostatic response to the site of injury
PF3
PF4
Actomyosin
Thromboxane 2
Dependent on binding of von Willebrand factor at the GPIb receptor site
platelet adhesion
platelet aggregation
platelet secretion
clot retraction
Activated platelets release granular contents like
Alpha granules
Beta granules
Delta Granules
lysosomes
