Which Statement Describes the Relationship Between the Pulmonary Circulation and the Pulmonary

question 21

Multiple Choice

Which statement describes the relationship between the pulmonary circulation and the pulmonary vascular bed?

• A) The pulmonary circulation is a high-pressure system with normal pressures averaging 100/60 to 120/70 mm Hg.
• B) Because of the low pulmonary arterial pressures, the right ventricular wall thickness needs to be only one-third that of the left ventricle.
• C) Pulmonary hypertension is defined as increased pulmonary artery systolic pressure above 20 mm Hg.
• D) The most common cause of pulmonary hypertension is right-sided heart failure.

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Definitions:

1950s

A decade significant for its post-World War II recovery, marked by economic prosperity, the rise of suburban living, and cultural shifts in many parts of the world.

1960s

A decade marked by significant social, political, and cultural changes, including the civil rights movement, counterculture, and technological advancements.

Hypothesis

A proposed explanation for a phenomenon, set forth as a starting point for further investigation.

Post Hoc

Short for "post hoc ergo propter hoc," a logical fallacy that assumes a cause and effect relationship simply because one event followed another.