Question

multiple choice question
in a healthy cardiovascular system, the endothelium is very smooth and its cells produce ______ which prevents adherence of platelets to the endothelium. thus, unwanted blood clots do not form.
serotonin
prostacyclin
histamine
need help? review these concept resources.

Explanation:

Prostacyclin is a substance produced by endothelial cells in a healthy cardiovascular system that inhibits platelet adhesion and aggregation, preventing the formation of unwanted blood - clots. Serotonin and histamine do not have this function in preventing platelet - endothelium adhesion.

Answer:

B. prostacyclin