All of the following statements about bronchial circulation are true, Except: (A) Contribute 2% of systemic circulation, (B) Contribute to gaseous exchange, (C) Cause venous admixing of blood, (D) Provide nutritive function of lung
Answer is B. Ans. (b) Contribute to gaseous exchange(Ref: Ganong, 25th ed/p.637)Bronchial circulation supplies oxygenated blood to the lungs through bronchial arteriesBronchial circulation constitutes about 2% of the cardiac outputBronchial arteries supply lung till the level of terminal bronchiolesBronchial circulation doesn't contribute to gaseous exchange