Question

The structure in the lungs know as the respiratory membrane is where gases are exchanged -oxygen leaves the lungs and enter the blood and carbon dioxide leave the blood and enter the lungs. the respiratory membrane is composed of two extremely thin layers of simple Squamous epithelium explain how the structure of the respiratory membrane follows its function

Answer 1

In summary, gas exchange is the movement of oxygen into the blood and carbon dioxide out of the blood across the respiratory membrane in the lungs. This respiratory surface, also known as the respiratory membrane, includes the alveolar epithelial cells as well as the pulmonary capillary endothelial cells.

Oxygen and carbon dioxide can diffuse easily across the thin membrane. In many regions there are no interstitial fluid.

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Oxygen and carbon dioxide can diffuse easily across the thin membrane. In many regions there are no interstitial fluid.

Respiratory membrane

Extracellular material consisting of a basal lamina secreted by epithelial cells and a reticular lamina secreted by underlying connective tissue cells.

Answer 2

The expandable structure of alveoli helps the respiratory system to follow its function.  

Inhalation:

On inhalation, the pressure in the alveoli is high, hence the Oxygen diffuses to the nearby blood through the membrane.

Exhalation:

It is the process in which a person releases the air collected in the lung. During exhalation, the pressure in the alveoli is low, hence the carbon dioxide present in the blood is diffused out into the alveoli.

Therefore, the expandable structure of alveoli helps the respiratory system to follow its function.  

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