Quote:
Makes sense if you think about it. I think at least. If there is high pressure in the lungs, direct the flow to the opposite end of the body, thus relieving the
problem.
|
Got it backwards.
Quote:
I was reading up on Viagra and as far as I can tell ,the stuff works on increasing the blood flow to smooth muscle tissue which makes it more responsive. Smooth muscle is found in the lungs as well as veins/arteries.
|
Close enough.
Fighter Pilots at high altitudes have multiple strains on their body. At high altitude of course oxygen is running low. The planes have compressors onboard which increase the air pressure (as well as warm it up) so that it is more similar to regular ground level. Occasionally these will go out (or get damaged) at which the pilot has two options. Dive to lower altitude (which is almost a guaranteed kill in combat), or suck it up (which again is almost a guaranteed kill in combat).
We all also know about G-Forces, where blood is forced to the legs and away from the head/heart. This is a biggie where Viagra kicks in. The drug relaxes muscles, as well as veins/etc. This is how you get a woody, not by your "muscle" contracting but by relaxing and filling with blood.
One would naturally assume the veins to get bigger, thus less blood pressure. This is why a lot of older guys pass out with it. Coupled with G-Suites, which tighten down on the legs and lower body to squeeze the blood up, this allows the upwards flow to be easier and thus the pilot stays conscious.
Ta da!