8. Coronary Arteries and Cardiac Veins

Question 1

Identify 1 → 2

Answer 1

1. Right coronary artery
2. Small cardiac vein

Question 2

Identify 3 → 5

Answer 2

3. Circumflex branch of left coronary artery
4. Coronary sinus
5. Middle cardiac (posterior interventricular) vein

Question 3

Identify 6

Answer 3

6. Inferior (posterior) interventricular (posterior descending) branch of right coronary artery

Question 4

Identify 7 → 10

Answer 4

7. Anterior interventricular (left anterior descending) branch of left coronary artery
8. Great cardiac (anterior interventricular) vein
9. Circumflex branch of left coronary artery
10. Left coronary artery

Question 5

The right coronary artery arises from ____

Answer 5

the ascending aorta

Question 6

The coronary sinus receives blood from (1)___ (3 veins)

→ then drains into (2)___

Answer 6

1. the great, middle, and small cardiac veins
2. the right atrium

Question 7

The right coronary artery arises from the ascending aorta

→ What does it generally supply?

Answer 7

1. the right atrium
2. most of the right ventricle
3. the diaphragmatic surface of the left ventricle
4. part of the atrioventricular septum
5. the sinuatrial node (60% of the time), and the atrioventricular node (80% of the time).

Question 8

The left coronary artery arises from ____

Answer 8

the ascending aorta

Question 9

The left coronary artery arises from the ascending aorta

→ What do its branches generally supply?

Answer 9

1. the left atrium
2. most of the left ventricle
3. some of the right ventricle
4. most of the interventricular septum
5. the sinuatrial node (40% of the time), and the atrioventricular node (20% of the time).

Question 10

What is the largest vein draining the heart?

Answer 10

The coronary sinus is the largest vein draining the heart.