Thursday, March 26, 2009

Physiology review-- Respiratory system--Video & Lecture notes

Respiratory system

Lung volumes, one which cannot be measured,yup you are right its..residual volume and its the most commonest question.
Respiratory system is actually very interesting and easy to remember ,nothing much to memorize,its like domino falling in motion,one after the other.

Increase in rate of breathing ,increases in total ventilation and no increase in alveolar ventilation ...the concept is worth reading
Lung Recoil and intrapleural pressure,Dont get confused with intrapleural pressure ,intra alveolar pressure,dont be in a rush to finish this chapter ,give yourself 3-4 hrs to finish it
Exam questions are based more on clinical repiratory medicine,these days,so do pnemothorax,lung compliance,respiratory distress syndrome in detail,its actually interesting,remember to keep ur scribbling pad in motion,this is a very interesting chapter,try not to rush...........
Obstructive and restrictive pattern ,FEV1/FVC when does it decrease and increase.
Then comes alveloar ventilation,Alvoelar Blood gas transfer-Ficks law of diffusion,O2 curve shifting to left and right,transport of co2 and o2,chloride shift.Central chemoreceptors and Co2,and finally hypoxia ,high altitude.
The last chapter in this section hypoxemia is so very important,if it gets a little confusing about hypoventilation and pulmonary shunt,play and replay the video,go through the notes,scribble on your pad,till you get it right
Finally do the questions at the end of the section,IT REALLY IS WORTH IT,THEY COME IN THE EXAM,might be modified a bit but they come,if you get the answers right nothing like it.Its time for the much needed cup of caffiene
Its worth the 4 hours you invested,keep an hour later in the night to revise.
Respiratory system is my favorite,why??its interesting,its our basic essense of life "Our breath" ,think that way and you will do it,dont even think of mentioning the word bor....

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