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Intraplural fluid facilitates the movement of the lungs with every inhalation and exhalation in the chest cavity.

It also protects the lungs from chest traumas.

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Q: What is the role of fluid in intrapleural space?
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What is the intrapleural space?

the intrapleural space is also referred to as the intrapleural cavity - the space where the major organs are fitted into and protected by the surrounding skeletal rib cage.


What is the intrapleural?

the intrapleural space is also referred to as the intrapleural cavity - the space where the major organs are fitted into and protected by the surrounding skeletal rib cage.


A chest wound can introduce air into the intrapleural space a condition known as?

The term that describes the result from an injury that permits air to leak into the intrapleural space is pneumothorax


If air enters the intrapleural space?

The lung will collapse (atelectasis) because the negative intrapleural pressure gradient that keeps the lung inflated has is now at equilibrium with atmospheric pressure.


Equilibration of pressure between the intrapleural space and the alveoli will lead to?

A pneumothorax, or a collapsed lung.


When is intrapleural pressure most negative?

Intrapleural pressure is most negative at the completion of inspiration.


What pressure keeps lungs inflated?

Intrathoracic pressure


How is intrapleural pressure maintained?

Intrapleural pressure is the pressure difference between the lungs and the pleural cavity of the lungs.


Why there is negative pressure in pleural cavity?

Pleural pressure is negative (lower than alveolar pressure or barometric pressure) because of a "suction effect" caused by lung recoil. As the lungs recoil elastically, the inner and outer pleural membranes tend to be pulled apart but fluid within the pleural cavity keeps the inner and outer pleural membranes close together. This pulling force decreases the pressure between the inner and outer membranes lining the pleural cavity - an effect that can be appreciated by stacking several plastic cups together, submersing the stack in soapy water ensuring that the spaces between the cups fill with water, and then lift the stack of cups out of the water and try to pull the cups apart. A suction effect will occur producing negative pressure in fluid-filled spaces between the cups as you attempt to pull them apart. The fluid-filled space between the cups is like the fluid-filled space in the pleural cavity. That is why pleural pressure is negative.


Explain the functional importance of the partial vacuum that exists in the intrapleural space?

If not present (and the intra-alveolar pressure equaled atmospheric pressure) the lungs would collapse.


The pressure in the alveoli is known as ?

intrapleural pressure


What would be the effect of a pneumothorax (air in the intrapleural space) on the lungs and breathing?

The affected lung would collapse or not be able to expand fully, so lung ventilation would decrease.