What is the membrane sac that encloses each lung?

1 Answer
Apr 25, 2017

The Pleura or Pleural membrane.

Explanation:

The lungs are surrounded by a thin double-layered membrane known as the Pleural membrane.

The outer layer, called the Parietal Pleura, is the thoracic part of the same membrane that coats the inner wall of all body cavities.

The inner part, called the Visceral Pleura, is particular to the lungs and is in contact with the lung surface.

The Pleural cavity is the potential space between them.

The Pleural membranes play an important role in lubrication and reducing friction between body parts during respiration.

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