Skin Respiration: Helper Function in Amphibians
What is it - biological definition
Skin breathing is breathing that occurs through the animal's skin. Many animals do not have specialized organs for gas exchange, so they occur through the skin.
How Gas Exchange Occurs
The animals with cutaneous respiration system have cells and or blood vessels in the skin, and through them occurs the oxygen uptake of the environment. Through these same cells or blood vessels carbon dioxide is eliminated.
Animals with this type of breathing have very thin, moist and gas-permeable skin, which are fundamental factors for gas exchange to occur.
Examples of animals that have skin breathing
Generally, animal species that have skin respiration live in aquatic or humid environments. Among these animals, we can mention:
- Annelids (earthworms, leeches, polychaetes).
- Flatworms (tapeworm solium).
- Cnidaria (freshwater hydra, jellyfish and jellyfish).
- Wormworms (parasitic worms, nematodes).
- Porifers (sponges)
The Amphibian Case
Amphibians (frogs, frogs, salamanders and tree frogs) also perform skin breathing, but this acts as a complement to (main) lung breathing. In amphibians, auxiliary skin breathing occurs when these animals are present in the aquatic environment.