ALM: air passages, lungs, muscles
1. Regarding the gaseous exchange system, which statements are correct?
2. The human gas exchange system is best described by which statement?
3. During inhalation, which statements accurately describe the mechanical events?
What is cellular respiration?
A chemical process in cells releasing energy for survival.
What does gaseous exchange involve?
Exchange of gases between air and blood in lungs.
What triggers inhalation in breathing mechanics?
Contraction of the diaphragm and external intercostal muscles triggers inhalation.
What happens to lung pressure during exhalation?
Lung pressure increases during exhalation.
Gaseous exchange system components
Air passages, lungs, ventilation muscles
Inhalation process
Diaphragm contracts downward, ribcage lifts
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