Question

lo 3.5. what is the function of the coronary arteries?
regulate heart rate
supply blood to the brain
transport oxygen to the lungs
supply blood to the heart muscle
supply blood to the lungs

Explanation:

Coronary arteries are blood vessels that branch off from the aorta and supply oxygen - rich blood to the heart muscle. This is crucial for the heart's proper functioning as it needs a continuous supply of oxygen and nutrients to pump blood effectively.

• "Regulate heart rate" is mainly controlled by the nervous system and hormones.
• "Supply blood to the brain" is the function of cerebral arteries.
• "Transport oxygen to the lungs" is part of the pulmonary circulation process (but the pulmonary arteries carry de - oxygenated blood to the lungs for oxygenation, not the coronary arteries).
• "Supply blood to the lungs" is also related to the pulmonary circulation (the pulmonary arteries carry de - oxygenated blood to the lungs and the pulmonary veins carry oxygenated blood from the lungs).

Answer:

Supply blood to the heart muscle