3 years ago

What is the Alveolar-Capillary Membrane? What is the Blood-Air Barrier? Watch this video to find out!
💥Alveolar Ventilation [Full Guide] ➜ ➜ ➜ https://bit.ly/2VipbBy

➡️ Alveolar-Capillary Membrane Overview
You may have heard it referred to as the blood-air barrier because the alveolar-capillary membrane forms the layers of tissues through which gases must diffuse. This membrane is formed by the type 1 pneumocytes of the alveoli and endothelial cells of the capillaries. There is a basement membrane between the two cells. The barrier is permeable to molecular oxygen and carbon dioxide which allows for cellular respiration to occur.

➡️ Some of the factors that influence the diffusion of gases across the barrier include:
- Pressure gradients
- Thickness of the tissue
- Solubility
- Diffusibility

➡️ Perfusion Definition
Perfusion refers to the amount of blood that flows to the alveolar capillaries. For the body to be able to obtain oxygen, there also must be a sufficient amount of blood passing through the lungs to pick up oxygen molecules so that it can be transported to all of the organs and tissues of the body.

➡️ Ventilation Definition
Ventilation refers to the amount of air that enters and leaves the alveoli. For the body to be able to obtain oxygen, there first must be a sufficient amount of air that reaches the alveolar region of the lungs. The efficiency of alveolar ventilation relies on the amount of air that reaches the alveoli.

➡️ Gas Exchange
If alveolar ventilation increases, the lungs would remove too much CO2 causing the PaCO2 to decrease. This is known as hyperventilation and would result in an increased pH, which is known as respiratory alkalosis. The opposite is true if alveolar ventilation is decreased because, then, too much CO2 would accumulate in the body causing the pH to decrease. This is known as respiratory acidosis. The alveolar-capillary membrane is the important barrier that facilitates the exchange of these gases which is required to sustain life. Again, for this video, we just wanted to provide you with a brief overview of this topic. We'll be breaking it down into much more detail in a separate video.

💥Alveolar Ventilation [Full Guide] ➜ ➜ ➜ https://bit.ly/2VipbBy

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🚑MEDICAL DISCLAIMER
This content is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please consult with a physician with any questions that you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you watch in this video. We strive for 100% accuracy, but errors may occur, and medications, protocols, and treatment methods may change over time.

💡AFFILIATE DISCLAIMER
This description contains affiliate links. If you decide to purchase a product through one of them, we receive a small commission at no cost to you.

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⏰TIMESTAMPS
0:00 - Intro
0:21 - Alveolar-Capillary Membrane Overview
0:46 - Factors that Influence the Diffusion
0:58 - Perfusion Definition
1:16 - Ventilation Definition
1:36 - Gas Exchange

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#RespiratoryTherapy #RespiratoryTherapist #GasExchange

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