what structure(s) in the cardiovascular system connect arteries to veins?\nvalves\nheart\ncapillaries\nlymph

Answer

Answer:

C. capillaries

Brief Explanation:

Capillaries are tiny blood - vessels that form the connection between arteries (which carry oxygen - rich blood away from the heart) and veins (which carry oxygen - poor blood back to the heart). Valves prevent back - flow of blood, the heart is the pump of the circulatory system, and lymph is part of the lymphatic system, not the connection between arteries and veins.