Pressure Changes In Pulmonary Ventilation Flashcards
1
Q
What happends during inhalation
A
*Diaphragm contracts
*chest expands ; lungs are pulled outwards
2
Q
What happends during exhalation
A
*Diaphragm relaxes
*lungs recoil inward
3
Q
Alveolar pressure (inhalation)
A
Decreases
4
Q
Alveolar pressure (exhalation)
A
Increases
5
Q
@ rest when the diaphragm is relaxed, alveolar pressure is equal to atmospheric pressure,and there is no air flow
A
Alveolar pressure = 760
Intrapleural pressure = 765
6
Q
Alveolar pressure during inhalation
A
758
7
Q
Alveolar pressure during exhalation
A
762
8
Q
Intrapleural pressure during inhalation
A
754
9
Q
Intrapleural pressure during exhalation
A
756
