Underwater Environments Flashcards
1
Q
What does hypobaric mean?
A
High pressure environment
‘Exceeds pressure exerted on body at sea level’
Minimal change possible without severe damage
2
Q
What is Henry’s law?
A
Amount of gas dissolved into a fluid is directly proportional to the pressure
Higher the atmosphere pressure, the greater amount of gas dissolved into a liquid
Gas transfer between gas and fluid depends on pressure difference and solubility
3
Q
Open circuit
A
No reused gas, expired air goes into surrounding water
4
Q
Closed circuit
A
Re use gas, scrubbing system system removes carbon dioxide
5
Q
What is barotrauma
A
Pressure injury caused by diving descent
Lung, Hood, Mask and Middle-ear squeeze
Cough blood, pulmonary edema, could drown in own blood
