Amphibians Breathe Through Skin
Most amphibians breathe through lungs and their skin.
Amphibians breathe through skin. Tadpoles and some aquatic amphibians have gills like fish that they use to breathe. Most breathe both through their skin and lungs. Amphibians have primitive lungs compared to reptiles birds or mammals.
Larval amphibians breathe primarily through gills. This means that they deal with slow diffusion of oxygen through their blood. The oxygen first dissolves into the liquid on the surface of the animals skin then it is picked up by blood that is in vessels close to the surface of the skin.
In reality there are few amphibians that can exist in salt water because their skin is very permeable and the toads have a warty. Skin breathing or cutaneous gas exchange is an important route of respiration in many aquatic or semiaquatic vertebrates and is particularly well developed in the amphibians. Being thinner and more breathable the epidermis of amphibians puts them at the mercy of the environment completely and they risk dying from dehydration if they dont have a source of water nearby.
Oxygen is a small molecule that can easily pass through the skin of an amphibian. Some amphibians can hold their breath for hours. There are three main types of amphibians anura apoda and urodela.
However some adult amphibians breathe only through their skin and are lungless. Through Body Wall or Skin. Most amphibians breathe through lungs and their skinTheir skin has to stay wet in order for them to absorb oxygen so they secrete mucous to keep their skin moist If they get too dry they cannot breathe and will die.
In unicellular animals such as amoeba exchange of gases takes place through cell surface. Unlike reptiles birds and mammals unborn or unhatched amphibians do not develop in a special protective sac called an amniotic sac. Birds have evolved a directional respiratory system that allows them to obtain oxygen at high altitudes.