Quiz 4 - Ch. 22 Flashcards
1
Q
Gas exchange in humans involves
A
breathing, transport of gases, and exchange with body cells
2
Q
Gases move
A
higher concentrations to lower in lungs and tissues
3
Q
Gas exchange
A
occurs through diffusion in a moist environment
4
Q
Gills
A
adapted for gas exchange in water
5
Q
Countercurrent exhange
A
flow of blood in an opposite direction of water movement inside the gills
6
Q
Skin
A
gas exchange over entire surface
7
Q
Insects
A
tracheal system for gas exchange
8
Q
Lungs
A
alveoli
surface area for gas exchange
9
Q
Surfactant
A
decrease the surface tension of the fluid in the lungs
