Discussion
Double Serous membrane surrounding the lungs is called :
Answer: A
It is called the pleura.
Each lung is covered by a double serous membrane: the visceral pleura sticks to the lung surface and the parietal pleura lines the chest wall. The thin film of fluid between the two layers lets the lungs glide smoothly during breathing. Inflammation of these layers is pleurisy.
The alveolar-capillary membrane is the thin barrier where gases are exchanged inside the lung. Infundibula are funnel-shaped passages leading to air sacs, and a bronchus is an airway. None surrounds the lungs.
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