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SandraM SandraM
wrote...
Posts: 1
Rep: 0 0
10 years ago
A.  Intact endothelial cells release nitric oxide, which blocks platelet adhesion.
B.   collagen is hidden unless a vessel is damaged, attracting platelets, and promoting their adhesion.
C.    Endothelial cells have prostacyclin in their membranes, which block platelet adhesion.
D.     A and B
E.      a, b, and C

I thought it was B, but I don't think the second part of the question is right.
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wrote...
Valued Member
10 years ago
The answer is E.. All of them are true
B is still right. It is proposing the fact that collagen being hidden acts as an inhibitor to prevent clotting. But when the vessel is damaged, it is no longer hidden, and thus starts to accumulate more platelets to form the clot  Slight Smile
B.Sc in Biology
M.Sc Neuroscience
PhD. Candidate in Neuroscience


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