Question

multiple choice question
what is the function of the coronary arteries?
they return deoxygenated blood from heart tissues to the right atrium.
they supply the brain with oxygenated blood.
they carry deoxygenated blood to the lungs.
they supply the heart tissues with oxygenated blood.

Explanation:

Coronary arteries are responsible for delivering oxygen - rich blood to the heart muscle itself. The other options describe functions of different blood - vessel systems.

Answer:

They supply the heart tissues with oxygenated blood.