The cardiovascular system - the coronary circulation

Question 1

What is the final valve on the left side of the heart and how many cusps does it have?

Answer 1

The aortic valve and 3 cusps

Question 2

Where are the aortic sinuses located?

Answer 2

Above the aortic valve

Question 3

What are the ostia?

Answer 3

Openings of the left and right coronary arteries

Question 4

What does the left coronary artery branch into?

Answer 4

Circumflex branch and anterior interventricular branch

Question 5

What does the right coronary artery branch into?

Answer 5

The Marginal branch and the posterior interventricular branch

Question 6

Describe the venous drainage of the heart

Where do these veins converge on to?

Answer 6

The venous drainage of the heart is via the great, middle and small cardiac veins

Coronary sinus, a large vein that opens up into the right atrium

Question 7

With which coronary artery does each of the cardiac veins run?

Answer 7

Great = left coronary artery

middle =

small = right coronary artery