Which compound displays dramatic ability to dilate blood vessels and to cause aggregation of platelets?

Question

Quizplus · Accepted Answer

Platelet-activating factor has been shown to have potent effects on blood vessels, leading to dilation or constriction depending on the specific context, and also to stimulate platelet aggregation. Cholesterol, estradiol, and arachidonic acid do not have such prominent effects on blood vessels and platelets.

Which Compound Displays Dramatic Ability to Dilate Blood Vessels and to Cause