Blood supply to heart Flashcards
What are the two main branches of the right coronary artery?
Right marginal artery, posterior interventricular artery
What are the three main branches of the left coronary artery?
Left anterior descending artery, left marginal artery, circumflex
What does the right coronary artery supply?
Right atrium and right ventricle
What does the right marginal artery supply?
Right ventricle, Apex of the heart
What does the posterior interventricular artery supply?
Posterior 1/3rd of the interventricular septum, AV node
What does the left anterior descending artery supply?
Anterior 2/3 of the interventricular septum
Right and left ventricle
What does the left marginal artery supply?
Left ventricle
What does the circumflex artery supply?
The left atrium and ventricle
What supplies the apex of the heart?
Right marginal artery
What supplies the interventricular septum?
Posterior 1/3rd= PIA
Anterior 2/3= LAD
What supplies the AV node?
Posterior interventricular artery
What 2 arteries can supply the SA node?
Right coronary artery
Left coronary artery
What proportion of people have SA node supply by the right coronary artery?
60%
40% Left coronary artery
