Ncert Exercises & Solutions

Q. 2 A fluid filled double membranous layer surrounds the lungs. Name it and mention its important function.

fluid filled double membranous layer that surrounds the jungs is called pleura, and fluids pleural fluid in between them. The outer pleural membrane is in close contact with the is pleuralfluid in between them. The outer pleural membrane is in close contact with the thoracic lining whereas, the inner pleural membraneis in contact with the lung surface.These collectively reducefriction on lung's surface.

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