Which blood component plays a crucial role in maintaining the integrity of the vascular endothelium by inhibiting platelet activation and aggregation?

A Von Willebrand factor
B Platelet-activating factor
C Prostacyclin ✓
D Thromboxane A2

Explanation

Prostacyclin, also known as prostaglandin I2, is a potent inhibitor of platelet activation and aggregation, and it plays a crucial role in maintaining the integrity of the vascular endothelium.

Source

Berne and Levy Physiology
Hematology Hematology: Blood Components Hematology: Blood Components Hard MEDICAL Confidence: high