Question

multiple choice question
where do the coronary arteries originate?
from the coronary sinus
from the pulmonary artery
from the aortic sinuses
from the superior vena cava

Explanation:

The coronary arteries originate from the aortic sinuses. The coronary sinus is a venous structure. The pulmonary artery carries de - oxygenated blood from the heart to the lungs. The superior vena cava returns de - oxygenated blood from the upper body to the right atrium.

Answer:

From the aortic sinuses