DPT 712 PHYSIOLOGY RESPIRATORY PART 2 EXAM QUESTIONS
AND VERIFIED ANSWERS
gasses move by...
passive diffusion
gas moves from areas of .... to areas of ...
high partial pressure....low partial pressure
what 4 things also affect the rate of diffusion
molecular weight, solubility of gas, surface area, and membrane thickness
pulmonary circulation's cardiac output
equal to the CO of systemic circulation (4-6 L/min)
whats the primary reason pulmonary circulation's MAP is lower than systemics?
pulmonary vessels have a larger radius
supply vessels during lung expansion
supply vessels (pulmonary arteries and arterioles) dilate which allows for blood to flow
easier BUT capillaries compress which decreases the blood flow
3 ways blood flow through systemic circulation is controlled?
local control, hormones, SNS
CO2 in systemic circulation
causes dilation
CO2 in pulmonary circulation
causes constriction
AND VERIFIED ANSWERS
gasses move by...
passive diffusion
gas moves from areas of .... to areas of ...
high partial pressure....low partial pressure
what 4 things also affect the rate of diffusion
molecular weight, solubility of gas, surface area, and membrane thickness
pulmonary circulation's cardiac output
equal to the CO of systemic circulation (4-6 L/min)
whats the primary reason pulmonary circulation's MAP is lower than systemics?
pulmonary vessels have a larger radius
supply vessels during lung expansion
supply vessels (pulmonary arteries and arterioles) dilate which allows for blood to flow
easier BUT capillaries compress which decreases the blood flow
3 ways blood flow through systemic circulation is controlled?
local control, hormones, SNS
CO2 in systemic circulation
causes dilation
CO2 in pulmonary circulation
causes constriction
