How does a frog force air into and out of its lungs of a frog?

Question

How does a frog force air into and out of its lungs of a frog?

Answer 1

Just like humans.

Two short-term cyclic events, buccal oscillations and ventilatory cycles, occur in the frog's respiration. Dutring ventilation the frog fills the buccal cavity with air, then blows the pulmonary contents through the buccal cavity, and finally closes the nostrils while pumnping the buccal contents into the lungs. The pulmonary efflux streams by the buccal contents with minimal mixing, and relatively pure air is pumped into the lungs. Buccal oscillations serve mainly to flush out the buccal cavity between ventilatory cycles.

http://www.sciencemag.org/cgi/content/ab...

Answer 2

you know how a frogs throat goes up and down It acts sort of as a pump. The frog takes in air, and the floor of his mouth raises and lowers, causing the pumping effect.

Frogs also absorb some oxygen through their skin. That means that he doesn't have to breathe quite as much as he would if he didn't absorb through his skin.