Exam 3 - Simplification Flashcards
Excercising
decreased PAO2, increased PACO2
Hyperventilating
increased PAO2, decreased PACO2
Snorkeling
decreased PAO2, increased PACO2
High Altitude
decreased PAO2, decreased PAO2
Medical Ventilator
increased PAO2, decreased PACO2
↑ PANS - broncho_______
bronchoconstriction
↓ PANS - broncho_
bronchodilation
↑ SANS - Circulating Epi - broncho_
bronchodilation
Physical/Chemical Stimuli
Bronchoconstriction
Cellular Mechanism
Bronchoconstriction
Non-Cholinergic - VPAC I / VPAC II in the Conducting Zone
Bronchodilation
Where is bronchoconstriction/bronchodilation occuring?
- Conducting Zone
- Trachea/Terminal Bronchioles
Where is vasodilation/vasoconstriction occuring?
- Respiratory Zone
- Pulmonary Arteries and Arterioles
PVSMC - ↑ SANS
Vasoconstriction
PVSMC - ↓ SANS
Vasodilation
PVSMC - ↑ PANS
Vasodilation
PVSMC - ↓ PANS
Vasoconstriction
NO/ACH/Circulating Epi
Vasodilation
NE/EPI
Vasoconstriction
ZONE 1
V/Q > 1
ZONE 3
V/Q < 1
NORMAL state in Respiratory Zone: Endothelin/NO
Vasodilation
HYPOXIC state: Endothelin/NO
Vasoconstriction
Examples of when alveolar dead space decreases and increases
Decreases on medical ventilation
Increases at high altitudes
