Pleura

The Pleura, the Pleura, is a thin skin that lines the inside of the chest cavity and covers the surfaces of the lungs. The name is derived from the Greek and means flank or rib. It is the task of the pleura to ensure that the heart, the chest wall and the lungs do not stick together.

What is the pleura?

The pleura is a sliding gap that lies between the chest wall and the lungs. This gap contains liquid. The lungs follow movements of the chest wall and diaphragm due to a negative pressure in the pleural cavity and the two pleural leaves.

The muscles enable breathing movements. The pleura consists of two leaves. While the outer leaf has grown together with the chest, the inner leaf lies directly on the lungs and is also grown together with them. There are only a few millimeters in between, the so-called pleural gap.

The pleural space is filled with serious, i.e. low-protein, fluid and lies between the pleura and the pleura. It ensures smooth movements of both lungs and supports the lungs in the movements of the chest wall.

Anatomy & structure

The pleura, consisting of the pleura and the pleura, is divided into the pleural domes, the pleura, the area around the connective tissue of the middle layer and the top of the diaphragm. The pleural leaves of the pleura secrete a liquid to keep the lungs slidable. The pleura covers the entire lungs with the thin skin.

In order to maintain the supply, the inner area regularly needs a certain amount of empty space. This creates a negative pressure that expands the lungs when you inhale. This lifts the ribs and lowers the diaphragm. On the exhalation, the ribs drop and the diaphragm rises. The lungs contract again and the air is forced out.

Function & tasks

The pleura has many sensitive nerves, which is the reason for the pain in the case of inflammation of the pleura. The pleura is responsible for ensuring that the lungs, chest wall and heart do not stick together.

Because the pleura is lining the chest cavity, the pleura acts as a layer between the lungs and the wall of the chest cavity that can be moved. In this way it supports the development of the lungs. Due to the smooth surface of the pleura and the secretion of fluid, the lungs glide easily during inhalation and exhalation.

In the case of severe complications such as tension pneumothorax, immediate medical care is necessary. In a tension pneumothorax, air enters the chest cavity from outside through a hole in the pleura, but the air cannot escape. The chest continues to inflate with air, resulting in rapid lung compression and severe breathing difficulties.

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Illnesses & ailments

The pleura can become inflamed with illness. If the pleura becomes roughened or the two pleural leaves stick together, breathing difficulties are the result. With a dry form of pleurisy, with inflammation of the pleura, there is no pleural effusion, with the wet form there is.

Inflammation of the pleura is usually a side effect of a disease such as pneumonia, lung infarction or lung cancer. Pleural effusion can be a symptom of other conditions. The effusion in the pleura is often punctured to remove the fluid. This gives patients relief and relief from the pleurae pain. Severe pain, shallow breathing, and a high temperature with a dry cough may be other symptoms. A lung x-ray is needed to confirm the diagnosis. There is a significant impairment of breathing and breathing difficulties.

As a result of a pneuomthorax, air gets into the narrow pleural space, caused by a ruptured alveolus or an external injury. The lungs collapse to a minimal volume and there is no more gas exchange. A pneumothorax develops. If the pleura becomes inflamed, dangerous complications such as pleural effusion can occur. Bacterial pneumonia spreads here. Pleural empyema, a purulent effusion, can occur after surgery in the chest or in the case of a lung abscess. The patients have a high fever and cough.

Night sweats appear and weight loss occurs. The diagnosis is made via a puncture of the pleura. Another complication after an inflammation of the pleura is the adhesion of both pleural leaves. The pleural skin is thick and immobile. It can be a few centimeters thick and has a tendency to shrink, which interferes with the necessary expansion of the lungs for breathing. Most breast pleura malignant tumors are metastases from other malignant tumors that have arisen elsewhere. Most of the time, the lungs, breasts or tumors from the gastrointestinal tract are affected and form metastases that spread to the pleura.