Heart Circulation

Question 1

What are the most commonly involved coronary branches in CAD?

Answer 1

1. Anterior Descending Artery (LAD)
2. Right Coronary Artery (RCA)
3. Circumflex Artery

Question 2

What is the path of the Right Coronary Artery?

Answer 2

1. Right Coronary Artery
2. Right Marginal Branch
3. Posterior Interventricular Artery/Posterior Descending (RPD), which anastamoses with LAD
4. Right Coronary Artery Anastamoses with Circumflex Artery in Posterior Interventricular Groove

Question 3

What is the path of the Left Coronary Artery?

Answer 3

1. Left Coronary Artery branches into LAD and Circumflex Artery
2. Anterior Interventricular Artery/Anterior Descending (LAD) Anastamoses with RPD
3. Left Marginal Branch
4. Circumflex Artery anastamoses with Right Coronary Artery in posterior inter ventricular groove

Question 4

What veins form the Coronary Sinus?

Answer 4

1. Great Cardiac Vein

2. Posterior Vein of the Left Ventricle (Could be multiple)

Question 5

What veins are tributaries of the Coronary Sinus?

Answer 5

1. Middle Cardiac Vein
2. Small Cardiac Vein
3. Oblique Cardiac Vein of the Left Atrium

Question 6

What are Miscellaneous veins of the Heart and where do they drain?

Answer 6

1. Anterior Cardiac Veins: Right Atrium

2. Thebesian Veins: Every chamber in the heart

Question 7

What vessels are most used for CABGs?

Answer 7

1. Great Saphenous Vein
2. Internal Thoracic Artery
3. Radial Artery

Question 8

What is Arterialization?

Answer 8

Vein becoming artery-like