<Ul> <Li> Obtuse marginal artery #1 (OM1) </Li> <Li> Obtuse marginal artery #2 (OM2) </Li> </Ul> <Li> Obtuse marginal artery #1 (OM1) </Li> <Li> Obtuse marginal artery #2 (OM2) </Li> <Li> Left anterior descending artery (LAD) <Ul> <Li> Diagonal artery #1 </Li> <Li> Diagonal artery #2 </Li> </Ul> </Li>

What are the functions of the coronary arteries and veins