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.
ANS: A
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