Which blood component is responsible for the production of heparan sulfate, a glycosaminoglycan that inhibits blood coagulation?

A Megakaryocytes
B Endothelial cells ✓
C Mast cells
D Basophils

Explanation

Endothelial cells produce heparan sulfate, a glycosaminoglycan that inhibits blood coagulation by activating antithrombin III.

Source

Guyton and Hall Textbook of Medical Physiology
Hematology Hematology: Blood Components Hematology: Blood Components Hard MEDICAL Confidence: high