3. Pulmonary Circulation

Study Guide

Blood flow through the right heart, pulmonary circulation, left heart, systemic circulation

What is the approximate CO of the right ventricle?

How does the pulmonary circulation compare to systemic circulation in terms of pressure and resistance?

What is pulmonary wedge pressure and how is it measured?

How is pulmonary blood flow regulated?

What is the difference in blood flow (in general, no numbers) between the three zones and why does this difference exist?

How does pulmonary blood flow change during exercise?

How does this compare with ventilation changes during exercise?

What does PVR measure?

What is the normal value?

Calculate PVR and determine if value is normal/abnormal

What is hypoxic vasoconstriction?

How is vasoconstriction different from what typically happens in other tissues during hypoxia?

How is vasoconstriction