Physostomous vs Physoclistous Gas Bladder Flashcards
1
Q
What does physo mean?
A
- bladder
2
Q
What is the gas composition of Physostomous Gas bladders?
A
- depends on species (CO2, O2, N2)
3
Q
Gas permeability needs to be low, why?
A
- minimal escape/loss (retain gas inside bladder)
4
Q
What allows the bladder wall to be impermeable?
A
- guanine and hypoxanthine in submucosal layer
5
Q
What does stoma mean?
A
- primitive mouth opening connected to esophagus
6
Q
What what fish have a physostomous gas bladder?
A
- soft ray-finned teleosts
7
Q
What is a physoclistous gas bladder?
A
- closed
- lacks connection to esophagus
8
Q
What fish have physoclistous gas bladder?
A
- spiny ray finned teleosts
- freed from surface
9
Q
What is the dual function of the lung?
A
- gas exchange
- buoyancy
10
Q
What is the equation for boyles gas law?
A
- P1V1/T1 = P2V2/T2
OR - P (delta)1/V
11
Q
What do each part of Boyle’s gas law equation mean?
A
- P = pressure
- V = volume
- T = temp
12
Q
10m = ___ atm
A
1
13
Q
What is regulation needed for?
A
- control position in water column
