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What is the direction of movement of gas between the blood and the alveolar duct?
Gas moves by diffusion from areas of high concentration to areas of low concentration. In the lungs, oxygen moves from the alveolar ducts into the blood in the capillaries, while carbon dioxide moves from the blood into the alveolar ducts to be exhaled.
Explain how changes in the alveolar structure cause a decrease in the blood oxygen levels in emphysema?
Decrease in alveolar surface area results in less boundary across which oxygen can be absorbed into the blood.
Where do blood cells pick up oxygen?
In the lungs, in the alveolar capillaries
Why alveolar oxygen tension is more than arterial oxygen tension?
The alveoli are the site of gas exchange in the lungs, where oxygen is taken up by the blood. The alveolar oxygen tension is higher than arterial oxygen tension because there is a gradient that drives oxygen diffusion from the alveoli into the blood. This difference is necessary to ensure efficient oxygen uptake by the blood in the lungs.
Explain how the changes in alveolar structure cause a decrease in blood oxygen levels in emphysema?
Pneumonia fills the lung's alveoli with fluid, keeping oxygen from reaching the bloodstream.
What is the mechanism that allows oxygen to move from the alveolar into the pulmonary capillary blood?
Simple diffusion
If a person had too much blood passing throuh the alveolar capilaries and not enough alveolar gas to provide oxygen to the blood what would you observe?
Systemic hypoxia -- the overall insufficiency to accumulate enough oxygen (and nitrogen too, but that's inert).
What term is used for the movement of oxygen into the blood of pulmonary capillaries and carbon dioxide into the alveoli air?
The term used for the movement of oxygen into the blood of pulmonary capillaries and carbon dioxide into the alveoli is "gas exchange." This process occurs in the alveoli of the lungs, where oxygen diffuses from the alveolar air into the blood, while carbon dioxide diffuses from the blood into the alveoli to be exhaled. Gas exchange is essential for respiration and maintaining proper oxygen and carbon dioxide levels in the body.
What does the Heart do to the Oxygen Blood in the Pulmonary Alveolar?
it changes oxygen to Carbon dioxide in the cells and the carbon becomes carboxy heamoglobin
The exchange of gases between alveolar air and blood is due to?
The exchange of gases between alveolar air and blood is due to diffusion. Oxygen moves from the alveoli into the blood, while carbon dioxide moves from the blood into the alveoli, driven by differences in partial pressures of the gases. This allows for oxygen to be taken up by red blood cells and carbon dioxide to be removed from the body.
How is PAP determined?
A chest x ray may show alveolar disease. An arterial blood gas reveals low oxygen levels in the blood. Bronchoscopy with transtracheal biopsy shows alveolar proteinosis.
Do the alveolar ducts absorb carbon dioxide?
No, alveolar ducts do not absorb carbon dioxide. Instead, the main function of alveolar ducts is to deliver oxygen from the air sacs to the bloodstream and remove carbon dioxide from the bloodstream into the air sacs for exhalation.
