Since fibrinogen is always present in the blood but the blood does not clot, ____ must normally be absent.
A) prothrombin
B) thrombin
C) calcium
D) red blood cells
E) platelets
Correct Answer:
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Q59: Which statement about erythrocytes is incorrect?
A)They display
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Q61: Which of the following is not a
Q62: Which is the correct sequence of events
Q63: Identify all incorrect statements.
A)Neutrophils and macrophages are
Q65: What chemical signal released by healthy endothelial
Q66: Platelets trapped within the fibrous meshwork of
Q67: In the last step of blood coagulation,
A)fibrin
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A)is released from traumatized tissue and
Q69: Clots are slowly dissolved by
A)tissue thromboplastin
B)prostacyclin
C)plasmin
D)calcium
E)plasminogen
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