14 Questions
What causes the decrease in alveolar pressure during spontaneous ventilation?
Increase in chest volume
Why does air flow into the lungs during spontaneous ventilation?
Decrease in alveolar pressure
What happens to pleural pressure during exhalation?
Decreases
How does gas flow according to Ohm's law during spontaneous ventilation?
From areas of higher pressure to lower pressure
What results in the flow of air out of the lungs during exhalation?
Pressure inside the lungs becoming greater than outside
Why do the diaphragm and chest wall muscles relax during exhalation?
To decrease chest wall volume
What is the role of intrathoracic pressure during spontaneous ventilation?
It helps increase alveolar pressure
Which process describes gas exchange at the alveolar level?
Diffusion
Where does oxygen and carbon dioxide exchange occur in the respiratory system?
Alveoli
What happens to oxygen during inhalation in the pulmonary capillaries?
It diffuses out
During exhalation, what type of air is primarily exhaled?
Air high in carbon dioxide
How do gases like oxygen and carbon dioxide move during respiration?
By diffusion
What allows for the delivery of oxygenated blood to the body during respiration?
Passive diffusion in the alveoli
Where does the process of respiration occur in the lungs?
Alveoli
Test your knowledge on the process of spontaneous breathing and ventilation, including the steps involved in lung movement and pressure changes within the chest. This quiz covers the contraction of respiratory muscles, increase in chest volume, and changes in intrathoracic and pleural pressures.
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