Question

Q4_Lungs are covered with double layered thin membranous sac called___________?
A.Disphragm
B.Pleura
C.Pericardium
D.Rib cage

Answer 1

Lungs are covered with double layered thin membranous sac called_. pleura.

Answer 2

Answer:

The pleural membranes are two layers of serous membrane which enclose and protect the lung. The superficial layer is called parietal pleura and lines the wall of the thoracic cavity. The deep layer is called visceral pleura and covers the lungs themselves.

• The two human lungs are covered by a double layered pleura, with pleural fluid between them. It reduces friction on the lung surface. The outer pleural membrane (parietal pleura) is in close contact with the thoracic lining whereas the inner pleural membrane (visceral pleura) is in contact with the lung surface.
• So, the correct answer is option B.

Explanation:

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