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← ScienceWhich risk develops within an artery when the Reynolds number surpasses a critical threshold?
A)Decreased blood flow velocity locally
B)Endothelial cell wall delamination
C)Increased laminar flow stability
D)Platelet aggregation accelerates at walls✓
💡 Explanation
When Reynolds number exceeds a threshold, fluid flow becomes turbulent, and this promotes platelet aggregation because turbulent eddies increase the frequency of platelet collisions with the arterial wall. Therefore, thrombosis risk rises rather than stable laminar flow as the Reynolds number increases.
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