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The question is asking you to match the blood vessels (List I) with their respective functions (List II).
A. Pulmonary: This refers to the blood vessels that are associated with the lungs. The correct function for this is given as option 4, which is "Carries blood from vein to heart". This means that the pulmonary vessels carry deoxygenated blood from the veins to the heart to be oxygenated in the lungs.
B. Capillaries: These are the smallest blood vessels in the body. The function for capillaries is given as option 3, which is "Connection between arteries and veins". Capillaries allow for the exchange of oxygen, nutrients, and waste products between the blood and the surrounding cells.
C. Coronary: These blood vessels supply oxygen and nutrients to the heart muscle. The correct function for this is given as option 2, which is "Carries blood to heart muscle". The coronary arteries deliver oxygenated blood to the heart muscle itself.
D. Pulmonary: As mentioned before, this refers to the blood vessels associated with the lungs. The correct function for this is given as option 1, which is "Carries blood from arteries to lungs". The pulmonary arteries carry oxygenated blood from the heart