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9 Cards in this Set
- Front
- Back
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Perfusion occurs best at the apex or at the base of the lung?
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base
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When you increase pulmonary arterial pressure, you will see an ... in vascular pressure but an overall ... in resistance due to 1) ... (inc/dec the number of blood vessels that blood actually goes thru) and 2) ... (inc/dec the radius of the pulm vessels)
total cross sectional area increases in both cases |
increase
decrease recruitment distension |
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Initially w/ increasing lung volume, you will see a ... in resistance due to radial traction. Increased diameter, resistance .... There is a point where alveoli will get too big. The alveolar vessels will be compressed as alveoli gets bigger. Then, you will start to see an ... in pulmonary vascular resistance.
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decrease
decreases increase |
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At ... (the resting point before we inspire), we have the ... amount of pulmonary vascular resistance.
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FRC
least |
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If any amt of bronchial blood is drained into the pulmonary vein, then the Aortic blood (which is destined for systemic circulation) is contaminated w/ unoxygenated blood (mixed venous blood). This is referred to as an ...
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anatomical shunt
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The pressures in the pulmonary circulation are lower than the pressures found in the aorta since the pulmonary vascular resistance is less (about ...) than that of the systemic vascular resistance.
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1/10th
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Calculation of blood flow (Fick’s Principle)
look at slide 14-16 |
ok
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Recruitment and distension occur more at the ..., where perfusion is best
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base
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The lowest pulmonary vascular resistance is at ...
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FRC
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