Gas Exchange Fish Flashcards
1
Q
Adaptation
A
Multiple gill filaments- (thin plates) = lrge SA, lamalle increase even more
Capilaries on lamalle- main steep concentration
Thin- short diffusion pathway
2
Q
Counter current system
A
Blood flows theough lamalle in one direction and water in another . This is the counter cutrent system. Maintsains concentration gradient. Water has a higher concentration of oxygen than blood and diffuses so as much possible oxygen diffused from water to blood.
