Frogs have lungs for breathing, but they also absorb dissolved oxygen directly through their skin. This allows respiration to occur when they are underwater. When they are on land, mucus keeps their skin moist to continue to absorb dissolved oxygen from the air.
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The breathing of frogs takes place through the skin. The skins are made of skiny membrane tissue, which is quite permeable to water and contains an outsized blood vessel network. The skiny membraneous skin allows the metastasis gasses to spread directly between the blood vessels and the surrounding area.The mucous secretion glands in the skin keep the frog wet once the frogs are out of the water, which helps to absorb dissolved O from the air.
Frogs even have a metastasis surface on their mouth liner on which gas is exchanged soon. While at rest, the method is their predominant respiratory type, often only fills the lungs. This can be due to the lungs that only adults have a poorly developed area unit.
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