When small blood vessels are damaged, loss of blood is prevented by
A) platelet aggregation
B) vasoconstriction of these vessels
C) formation of a platelet plug
D) all of the above
E) only a and c
Correct Answer:
Verified
Q66: Platelets trapped within the fibrous meshwork of
Q67: In the last step of blood coagulation,
A)fibrin
Q68: Tissue thromboplastin
A)is released from traumatized tissue and
Q69: Clots are slowly dissolved by
A)tissue thromboplastin
B)prostacyclin
C)plasmin
D)calcium
E)plasminogen
Q70: Platelet aggregation is reinforced by what signal?
A)ADP
B)fibrinogen
C)thromboxane
D)prostacyclin
E)thrombopoietin
Q72: What forms the meshwork of a clot?
A)red
Q73: Platelets are normally attracted to a
A)collection of
Q74: Exposed collagen in a damaged vessel
A)activates factor
Q75: Select the incorrect statement about heparin.
A)It is
Q76: The extrinsic clotting pathway
A)is initiated by platelet
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