All of these prevent the spontaneous formation of a clot except
A) the presence of tissue thromboplastin.
B) the smooth prostacyclin-coated endothelium of blood vessels.
C) the dilution of thrombin when blood flows at a normal rate.
D) the presence of antithrombin in plasma.
E) the presence of heparin in plasma.
Correct Answer:
Verified
Q45: A woman's first pregnancy is normal but
Q47: All these can cause leukopenia except
A)acquired immunodeficiency
Q48: The cessation of bleeding is specifically called
A)vascular
Q49: These are the most abundant agranulocytes.
A)macrophages
B)eosinophils
C)monocytes
D)lymphocytes
E)neutrophils
Q51: When a clot is no longer needed,
Q53: The main reason why an individual AB,
Q54: participates in the extrinsic mechanism only.
A)Calcium
B)Prothrombin activator
C)Prothrombin
D)Thromboplastin
E)Thrombin
Q55: These are the least abundant formed elements.
A)platelets
B)basophils
C)erythrocytes
D)neutrophils
E)eosinophils
Q68: Most strokes and heart attacks are caused
Q71: Platelets release _,a chemical vasoconstrictor that contributes
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