gas exchange

[/ɡæs ɪksˈtʃeɪndʒ/]
nounpl: gas exchanges
troca gasosa
1. The process by which oxygen and carbon dioxide are exchanged between an organism and its environment, typically occurring in the lungs or respiratory surfaces
Gas exchange occurs in the alveoli of the lungs where oxygen enters the bloodstream and carbon dioxide is expelled.
A troca gasosa ocorre nos alvéolos dos pulmões, onde o oxigênio entra na corrente sanguínea e o dióxido de carbono é expelido.
2. In aquatic organisms, the transfer of dissolved gases through respiratory structures such as gills
Fish rely on gas exchange through their gills to extract oxygen from water.
Os peixes dependem da troca gasosa através de suas brânquias para extrair oxigênio da água.
3. In plants, the exchange of oxygen and carbon dioxide through stomata for photosynthesis and respiration
Gas exchange in plants occurs primarily through stomata on the leaf surface.
A troca gasosa nas plantas ocorre principalmente através dos estômatos na superfície da folha.
Gas exchange is a fundamental concept in medical and biological education in both Brazil and the United States. In healthcare settings, assessment of gas exchange through blood gas analysis (arterial blood gas or ABG tests) is a critical diagnostic tool. The term is used identically in Portuguese-speaking countries and is part of standard medical terminology in both Brazilian and Portuguese healthcare systems.
Synonyms / Sinônimos
respirationoxygen exchangepulmonary exchangegaseous exchange

Regional Variations

General Brazilian
troca gasosa
Standard scientific term used in medical and biological contexts
São Paulo
troca gasosa
Commonly used in university and medical settings
Rio de Janeiro
troca gasosa
Standard usage in academic and healthcare institutions
Portugal
troca gasosa
Identical term used in Portuguese medical and scientific literature

Related Words

respirationalveolilungsgillsstomatacarbon dioxideoxygendiffusion

Related Idioms & Phrases

impaired gas exchange
adequate gas exchange
compromised gas exchange
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