Blood Flow to the heart

Question 1

Posterior descending Artery

Answer 1

Posterior ⅓ of the IV septum
Posterior walls of the ventricles (L and R)
Posteromedial Papillary muscle

Question 2

Right coronary

Answer 2

AV - AV nodal branch

SA- SA nodal branch

Question 3

Left circumflex

Answer 3

Lateral part of the left ventricle
Posterior wall of the left ventricle
Anterolateral papillary muscle

Question 4

Left Ascending artery

Answer 4

Anterior ⅔ of the IV septum
Anterior wall of the left ventricle
Anterolateral part of the papillary muscle

Question 5

Orientation of the heart

Answer 5

Most posterior part: Left atrium (esophageal compression, and hoarseness with enlargement
Apex: Left ventricle
Right border of the heart (sternocostal border): Right ventricle and Right Atria
Base of the heart: mostly the left atrium
Diaphragmatic: ventricles
Superior border: Where the great vessels enter (atria)

Question 6

Right (acute) Marginal Artery

Answer 6

Supplies the Right ventricles