Which of the following pressures must always be lower than the others in order to ensure...

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Medical Sciences

Which of the following pressures must always be lower than theothers in order to ensure proper lung ventilation?
Atmospheric
Intrapleural
Alveolar
Intrapulmonary
When blood leaves tissues that are more metabolically activethan when at rest, the saturation of the hemoglobin would be:
Exactly 75%
100%
0%
Less than 75%
Hemoglobin can carry both oxygen and carbon dioxide because---------------------
When oxygen binds to hemoglobin, the oxygen molecule ischemically altered, making it possible for carbon dioxide to bindto the oxygen molecule.
They bind to different sites on the hemoglobin molecule.
Both oxygen and carbon dioxide can bind to the same site onhemoglobin at the same time.
Actually, they canâ€™t both be carried at the same time onhemoglobin because they compete for the same binding site.
Which of the following is NOT likely to increase in activity inred blood cells as they travel through pulmonary capillaries in thelungs:
Proton (H⁺) release from hemoglobin
Carbon dioxide binding to amino acids of hemoglobin
Bicarbonate ion movement into the cell
Carbonic acid conversion to carbon dioxide and water

Answer & Explanation Solved by verified expert

3.8 Ratings (378 Votes)

1 B Intrapleural explanation Mechanics of breathing Following three types of pressures are observed in breathing mechanics 1 Intrapleural pressure It is the pressure in the space between lungs and chest wall Normally it is negative around 25 mmHg at the start of inspiration 2 Intra See Answer

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