pulmonary Flashcards
1
Q
Where in this graph do pulmonary arterioles have the least amount of vascular resistance?
A
C
It is lowest at FRC
At full expiration, alveolar capillaries are completely dilated, but interstitial vessels are at their lowest diameter. At full inspiration, alveolar capillaries are at their lowest diameter, but interstitial vessels are at their highest. Therefore, in the middle of inspiration and expiration is where PVR is at its lowest
2
Q
What cell causes the development of emphysema and alpha-1 antitrypsin deficiency?
A
neutrophils
3
Q
Are H1 histamine receptor antagnosists effective at treating asthma?
A
NO!!
4
Q
Are anti-IgE antibodies effective at treating asthma?
A
yes!
