Quote Originally Posted by peaceandlove420
I could be wrong but my theory contradicts this one so I thought I would add this in.

I believe it is actually the large ventricles in your lungs that marijuana goes through. This is the oposite of ciggarettes and why you (well theoreticaly) can't get emphysyma and other lung related illnesses from cannabis. The tobacco attacks the small ventricles(wrong word?) and makes it harder to breathe and cuases emphysyma and all sorts of bad stuff.:rastasmoke:
... you do of course realize birdgirl has spent a good portion of her life involved in medical work... and is now going to school to become a dr...