Happy Dog wrote:
"Jack" wrote in message

Partially crap. Learn how lungs work.

Your post is complete crapp. Why don't you spend five seconds and tell us
all you know in the subject?


Adorable. In five seconds. Below a minimal partial pressure of O2, (40mm
Hg is the typical partial pressure in tissue / 100mm is pO2 in the lungs) an
exchange won't occur in the lungs. Period. Exhaling to the best of one's
ability, as the previous poster suggested, isn't analogous. Lungs work just
fine in reverse.

For more, Google +oxygen +"partial pressure" +respiration 39,500 hits.

moo