Platelets Participate in Hemostasis by

question 51

Multiple Choice

Platelets participate in hemostasis by

• A)aggregating to form a plug and manufacturing fibrinogen.
• B)secreting nitric oxide and releasing chemicals that promote vasoconstriction.
• C)secreting prostacyclin,which prevents platelet aggregation on blood vessel endothelium.
• D)aggregating to form a plug and releasing chemicals that promote vasoconstriction.
• E)secreting tissue plasminogen activator (t-PA)whenever they come into contact with collagen.

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