Exam 3 - Simplification Flashcards
(24 cards)
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
