Smallest functional unit of the lung is: (A) Acinus, (B) Alveolus, (C) Lobules, (D) Broncho pulmonary segments
Answer is C. [Cl (Lobule) (219 - I.B.Singh 5th)Lobule - small segment, is the functional unit of the lung including respiratory bronchioles, alveolar ducts and sacs and alveoli