Pulmonary pleura

Pulmonary Pleura

The Pulmonary Pleura is a vital component of the human respiratory system. It is a thin, serous membrane that envelops the lungs and lines the interior of the thoracic cavity.

Anatomy

The pulmonary pleura is divided into two layers: the visceral pleura and the parietal pleura. The visceral pleura directly covers the surface of the lungs, while the parietal pleura lines the chest wall, diaphragm, and mediastinum.

Function

The primary function of the pulmonary pleura is to facilitate the movement of the lungs within the thoracic cavity during respiration. The pleural cavity, the space between the two pleural layers, contains a small amount of pleural fluid that reduces friction between the two layers as they slide against each other during respiration.

Clinical Significance

Diseases and conditions that can affect the pulmonary pleura include pleurisy, pleural effusion, and mesothelioma. Pleurisy is an inflammation of the pleura that can cause severe chest pain. Pleural effusion is a condition where excess fluid builds up in the pleural cavity. Mesothelioma is a rare form of cancer that develops in the pleura.

See Also

• Respiratory System
• Lungs
• Thoracic Cavity
• Pleural Effusion
• Mesothelioma