Question

lo 3.5. what does the coronary artery supply to the heart muscle?
deoxygenated blood
carbon dioxide - rich blood
oxygen - rich blood
iron - rich blood
oxygen - depleted blood

Explanation:

The coronary artery is responsible for supplying the heart muscle with oxygen - rich blood. This is crucial for the heart muscle to function properly as it needs oxygen for energy production (through cellular respiration). Deoxygenated blood (which is low in oxygen) is carried by veins (such as the coronary sinus which drains deoxygenated blood from the heart muscle). Carbon dioxide - rich blood is also deoxygenated blood. Oxygen - depleted blood is similar to deoxygenated blood. Iron - rich blood is not the specific supply related to the coronary artery's main function for the heart muscle. The heart muscle, like any other tissue, needs oxygen - rich blood for its metabolic activities.

Answer:

Oxygen - rich blood