How do gases flow through frogs?

Gases flow through frogs primarily via their skin and lungs. Frogs have permeable skin that allows for the diffusion of oxygen and carbon dioxide directly into and out of their bloodstream, which is especially important when they are underwater. Additionally, frogs use their lungs to breathe air, inhaling through their nostrils and forcing it into their lungs by closing their mouths and contracting their throat muscles. This combination of skin and lung respiration enables frogs to efficiently exchange gases in various environments.