Which of the following blood components plays a crucial role in the maintenance of blood vessel integrity and regulation of vascular tone?

A Platelets
B Red blood cells
C White blood cells
D Endothelial cells
Endothelial cells line the inner surface of blood vessels and play a critical role in maintaining vascular tone, regulating blood flow, and preventing thrombosis.
Robbins and Cotran Pathologic Basis of Disease
Hematology Hematology: Blood Components Hematology: Blood Components Medium MEDICAL Confidence: high