Respiratory Flashcards
Air from the nose to terminal bronchioles that does not undergo gas exchange
Anatomic dead space
Normal value: 150ml
Air in the respiratory unit of the lung that does not undergo gas exchange due to V/Q mismatch
Alveolar dead space
0ml
Anatomic + alveolar dead space
Physiologic dead space
Functional anatomic unit of the lung
Bronchopulmonary segments
Type of pneumocyte for gas exchange
Type 1
Type of pneumocyte for surfactant production
Type II
Produces protective GAGs and metabolize air-borne toxins
Clara cells/ club cells
Alveolar macrophages
Dust cells
What equation to use in physiologic dead space
BOHR equation
Maintains oxygenation in b/w breaths
Residual volume
Equilinrium/resting volume of the lung
Functional residual volume
Marker for lung function
Functional residual volume
Cannot be measured by spirometry
1.
2.
3.
RV
FRC
TLC
Remains in the lungs after a tidal volume is expired
FRC
Remains in the lungs after a maximal expiration
Residual volume