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Alveolar air

Alveolar air --> alveolar gas

The gas in the pulmonary alveoli, where O2-CO2 exchange with pulmonary capillary blood occurs.

Synonym: alveolar air.


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Granuloma

... about sarcoidosis but I had an exam last week on TB so here is my summary of what causes it. The Mycobacterium tuberculosis rods are engulfed by alveolar macrophages. This kills about 90% of the rods but the remaining 10% evade the host cell's microbicidal killing. They can do this by preventing ...

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by Katy_Bobbles
Tue Jan 15, 2008 1:40 pm
 
Forum: Human Biology
Topic: Granuloma
Replies: 3
Views: 2960

Water's role in covering alveolar cells

I understand how it affects the lung compliance, but what is the purpose of having it there. Is it to moisten the air?

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by dakims
Mon Nov 26, 2007 5:25 am
 
Forum: Human Biology
Topic: Water's role in covering alveolar cells
Replies: 2
Views: 1814

Inhalation/Exhalation

... in order to inhale, we assume the situation after exhalation that no air flows. when we inhale, we increase the lungvolume --> the diaphragm gets flattened and the alveolar pressure decreases. Directly after that (milliseconds) net air flows in because ...

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by sdekivit
Sun Oct 15, 2006 9:34 pm
 
Forum: Human Biology
Topic: Inhalation/Exhalation
Replies: 4
Views: 4579

how to breath when running

and to get an optimal alveolar ventilation you should breath in slowly and deeply instead of increasing you inhalation frequency. Proof: AV = f * (TV - DS) where AV = alveolar ventilation, f = frequency, TV = tidal volume and DS = anatomical ...

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by sdekivit
Tue Sep 19, 2006 7:33 pm
 
Forum: Human Biology
Topic: how to breath when running
Replies: 23
Views: 23487

lungs

when you breath in air, the pressure in the alveoli rises initially. But because little blood is pumped into the top arterioles of the lung the alveolar pressure is higher then that of the arteriole and venule, and thus vasoconstriction appears. ...

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by sdekivit
Sat Apr 15, 2006 12:36 pm
 
Forum: Human Biology
Topic: lungs
Replies: 4
Views: 1936
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