Anatomy of the Pleura

What is the main function of the pleural fluid?

What is the outer layer of the pleura that lines the thoracic cavity?

What is the term for the accumulation of fluid in the pleural space?

What is the inflammation of the pleura often caused by?

What is the term for the accumulation of air in the pleural space?

What is the main function of the pleura?

Structure of the Pleura

The pleura is a thin, double-layered membrane that surrounds the lungs
Consists of two layers:
- Visceral pleura: inner layer that adheres to the lung surface
- Parietal pleura: outer layer that lines the thoracic cavity

Functions of the Pleura

Produces serous fluid that reduces friction between the lungs and chest wall during breathing
Allows for smooth movement of the lungs during inhalation and exhalation

Pleural Fluid

A clear, serous fluid that fills the space between the visceral and parietal pleura
Functions:
- Reduces friction between the lungs and chest wall
- Aids in the removal of debris and bacteria from the pleural space
- Helps to regulate the balance of fluids in the body

Clinical Relevance

Pleurisy: inflammation of the pleura, often caused by infection or injury
Pleural effusion: accumulation of fluid in the pleural space, which can be transudative (clear fluid) or exudative (cloudy fluid)
Pneumothorax: accumulation of air in the pleural space, which can cause the lung to collapse

Learn about the structure and functions of the pleura, including the visceral and parietal layers, and its role in breathing. Also, understand the clinical relevance of the pleura, including pleurisy, pleural effusion, and pneumothorax.