Question

the double layered proctective membrance of the lungs that help to prevent the friction between lungs and walts of the thoradic cavit is called? ​

Answer 1

Answer:

pleura

Humans have a pair of lung, each of which is covered by a double membrane called pleura,with pleural fluid between them. Pleural fluid reduces the friction on the lung surface.

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Answer 2

The double layered proctective membrane of the lungs that help to prevent the friction between lungs and walls of the thoracic cavity is called PLEURA.

PLEURA:

• PLEURA is a double layered covering around the lungs.

• The outer layer of pleura is called parietal pleura.

• The inner layer of pleura surrounding the lungs is called visceral pleura.

• The space between the two layers is filled with pleural fluid , which reduces the friction.

• The regions of pleura are cervical pleura, costomediastenal pleura, costodiaphragmatic pleura, posterior pleura , costo pleura and mediastenal pleura.

• The pleura is invaginated in the left lung near to the cardiac notch between 4th and 6th rib.

• In the region of cardiac notch, the pericardium of heart is surrounded only by pleural membrane.

• The costodiaphragmatic recess is the 4 to 5 cm deep space between parietal and visceral pleura in the distal region of thorax.