Physiology - lecture 5 Flashcards
what is the bronchial circulation and what does it do?
a
what is bronchial circulation supplied via?where dies it arise form?
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what does pulmonary circulation consist of? where do the arteries originate? what do they carry? what do they supply?
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what kind of flow and pressure system doe the pulmonary circulation have?
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units - what do they mean? - A? a? ṽ? PaO2? PAO2?
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what is the partial pressure of oxygen and CO2 in arterial blood? the alveoli? venous blood?
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What does arterial PO2 and PCO2 values reflect?
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What do venous PO2 and PCO2 values reflect?
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what is the rate of diffusion directly proportional to?
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what is the rate of diffusion inversely proportional to?
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how many times greater is the oxygen gradient than the CO2 gradient? why does the rate of both not reflect this?
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what are capillary cells always in direct contact with? why?
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what happens in emphysema in regards to the alveoli?
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