Each lung lies within the pleural cavity within which the lung expands. The pleural cavity is lined by two transparent elastic membranes called the pleura/pleural membranes. The inner pleuron covers the lung the outer pleuron is in contact with the walls of the thorax and the diaphragm. A thin layer of lubricating fluid between the pleural membranes allows them to glide over each other when the lungs expand and contract during breathing. So your answer is the pleural fluid lies between the pleural membranes.
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The average human body contains about 11 liters of interstitial fluid, which is the fluid that surrounds and bathes the cells in our tissues. This fluid helps transport nutrients, waste, and other substances between cells and blood vessels.
Most of the water in the human body is located within the intracellular space, which is the fluid found inside the cells. Approximately two-thirds of the body's total water content is contained in this space. The remaining water is distributed in the extracellular space, which includes interstitial fluid and blood plasma.
The smallest parts of the human body are contained in the cells.
The extracellular fluid (ECF) is found outside the cells and includes the interstitial fluid and intravascular fluid, while the intracellular fluid (ICF) is contained within the cells. ECF is high in sodium and low in potassium, while the ICF is high in potassium and low in sodium. These differences are maintained by the cell membrane through active transport mechanisms, helping to create a concentration gradient that allows for various cellular processes to occur.
Although the human body has numerous "fluids" in it, blood is the only thing that is considered a "fluid tissue." This means that it is a tissue in the body just like muscle tissue, however it is fluid unlike muscle tissue. The answer is yes.