Chapter 1 - The normal cardiovascular system

Question 1

what percentage total blood volume is in the systemic v pulmonary circulation?

Answer 1

75% v 25%

Question 2

what percentage of the systemic blood volume is in the venous system v arteries v capillaries?

Answer 2

67-80% v 10-15% v 5%

Question 3

what percentage of pulmonary blood volume is in the venous system v arteries v capillaries?

Answer 3

distributed evenly through the 3 compartments

Question 4

MAP in the pulmonary circulation is roughly what fraction of that of the systemic circulation?

Answer 4

1/7

Question 5

describe the anatomy of blood supply to the myocardium

Answer 5

L and R coronary arteries arise from the sinuses of Valsalva behind valve leaflets at the aortic root, these course over the external surface of the heart before branching and penetrating the myocardium, smaller coronary veins flow into the great coronary (cardiac vein) and empty into the coronary sinus in the RA