Also known as "the bends"
Dissolved nitrogen (and occasionally helium) comes out of solution and forms bubbles in blood and tissue
Occurs in rapid ascent in diving, and more rarely in military operations rapid ascent in high altitude aviation or hypobarics training
Pascals Law applies to the diving body (without air filled areas such as lungs) states that the pressure applied to any part of the enclosed liquid will be transmitted equally in all directions through the liquid.
Boyles Law applies to the diving body's air filled areas such as lungs, sinuses, middle ear, and states that the volume and pressure of a gas at a given temperature are inversely related.
At 2 ATA (10m/33ft) a given gas would be 1/2 it's volume, at 3 ATA (20m/66ft) it would be 1/3 it's volume and so on.
At 2 ATA (10m/33ft) a given gas would be 1/2 it's volume, at 3 ATA (20m/66ft) it would be 1/3 it's volume and so on.
Decompression sickness
Barotrauma of descent
Acute mountain sickness
Otic barotrauma
Chronic mountain sickness
Pulmonary barotrauma
Acute chest syndrome
Sinus barotrauma