CARDIOPULMONARY ANATOMY AND PHYSIOLOGY QUESTIONS AND ANSWERS LATEST VERSION

CARDIOPULMONARY ANATOMY AND
PHYSIOLOGY QUESTIONS AND ANSWERS
LATEST VERSION
inspiration is caused by downward movement of rubber sheet called? -
Answer:-the diaphragm



End inspiration? -Answer:-Equilibrium point, no gas flow



what is expiration caused by? -Answer:-elastic recoil of diaphragm upward
movement



End expiration? -Answer:-Equilibrium, no gas flow



Driving Pressure -Answer:-Force moving gas through tube or vessel,
difference between two points in tube or vessel



Transrespiratory Pressure (P rs) -Answer:-Barometric pressure difference
between barometric pressure and alveolar pressure



Transrespiratory Pressure Formula -Answer:-P rs = P b - P alv

, Transmural Pressure (P tm) -Answer:-differences that occur across airway
wall



How is Transmural Pressure calculated? -Answer:-by subtracting intra-airway
pressure (P iaw) from pressure outside of air way (P oaw)



P iaw -Answer:-Pressure in the trachea



P oaw -Answer:-Pressure in the mouth



If the airway is widened, is the transmural pressure positive or negative? -
Answer:-positive



Transpulmonary Pressure (T tp) -Answer:-Difference between alveoli
pressure (P alv) and pleural pressure (P pl)



Transpulmonary Pressure Formula: -Answer:-P tp = P alv - P pl



Pleural Pressure will always be ____ -Answer:-lower