Which Statement Best Describes the Unique Features of the Pulmonary

Question

Which statement best describes the unique features of the pulmonary circulatory system?
A)It is a dual system that accommodates large volumes of blood at low pressure.Bronchial circulation arises from the aorta to nourish lung tissue,whereas the pulmonary circulation brings deoxygenated blood to the gas-exchanging units.
B)It is a dual system that accommodates large volumes of blood at high pressure.Bronchial circulation arises from the aorta to nourish lung tissue,whereas the pulmonary circulation brings deoxygenated blood to the gas-exchanging units.
C)It is a dual system that accommodates steady,small volumes of blood at low pressure.Bronchial circulation arises from the aorta to nourish lung tissue,whereas the pulmonary circulation brings deoxygenated blood to the gas-exchanging units.
D)It is a dual system that accommodates large volumes of blood at low pressure.Bronchial circulation arises from the right ventricle to nourish lung tissue,whereas the pulmonary circulation brings deoxygenated blood to the gas-exchanging units.

Accepted Answer

The pulmonary circulatory system is unique because it operates at low pressure to accommodate large volumes of blood, and it indeed comprises two parts: the bronchial circulation, which originates from the aorta to supply the lung tissue with oxygenated blood, and the pulmonary circulation, which carries deoxygenated blood from the heart to the lungs for gas exchange.