Heart: Blood Supply Flashcards
The right and left coronary arteries arise from which of the great vessels?
The aorta just superior to the aortic valve
What is the location of the coronary arteries in relationship to the layers of the heart?
Subepicardial (between the epicardium and myocardium)
The right coronary artery gives off what branches?
1) Sinuatrial Nodal Artery
2) Right Marginal Artery
3) Posterior interventricular artery
What is the condition when a coronary artery dives into the myocardium?
Myocardial Brdges
Which of the coronary arteries is shorter?
Left
Which branch of the left coronary artery lies within the anterior interventricular sulcus?
Anterior Interventricular artery
Which branch of the left coronary artery will cross posterior to anastomose with the right coronary artery?
Circumflex Artery
Which artery will branch off of the cricumflex artery?
Left Marginal Artery
What does it mean when it is said that a coronary artery is dominant?
Which artery does the posterior interventricular artery branches from
In what percent of the population is the right coronary artery dominant?
70%
In right coronary dominance, what does the right coronary artery supply?
1) Right Atrium
2) Most of the right ventricle
3) Diaphragmatic surface of the left ventricle
4) Posterior 1/3 of the interventricular septum
5) Conduction system to the proximal parts of the right and left bundle branches
In right coronary artery dominance, the left coronary artery supplies what?
1) Left Atrium
2) Most of the left ventricle
3) Part of the Right Ventricle
4) Anterior 2/3 of the interventricular septum
What are typicllay considard to be the end arteries of the coronary arteries?
Branches of the coronary arteries
Where do anastomoses occur between which arteries?
1) Right Coronary and circumflex arteries
2) Anterior and Posterior Interventricular Arteries
What is the largest vein of the heart?
Coronary Sinus
The coronary sinus lies where?
Within the coronary sinus
The coronary sinus drains into what?
The Right Atrium
What are the five tributaries of the coronary sinus?
1) Great Cardiac Vein
2) Middle Cardiac Vein
3) Small Cardiac Vein
4) Posterior Vein of the Left Ventricle
5) Oblique Vein of the Left Atrium
The anterior vein of the right ventricle drains where?
Directly into the right atrium
What are the smallest veins of the heart?
Venae Cordis Minimae
What is the location of the venae cordis minimae?
Within the walls of the heart and drain primarily into the right atrium
The great cardiac vein accompanies what other vessel as it drains the heart?
The anterior Interventricular Artery
The middle cardiac vein accompanies which other vessel as it drains the heart?
The Posterior Interventricular Artery
The small cardiac vein accompanies what arteries as it drains the heart?
The right coronary artery near the right lower margin of the heart
