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Using many structures called gill lamellaes
Gaseous exchange occurs in the alveoli (singular = alveolus) of the lungs.
The earthworm has no special respiratory organs. Gaseous exchange occurs through moist skin by diifusion.
The respiratory system is the anatomical system of an organism that introduces respiratory gases to the interior and performs gas exchange. In humans and other mammals, the anatomical features of the respiratory system include airways, lungs, and the respiratory muscles. Molecules of oxygen and carbon dioxide are passively exchanged, by diffusion, between the gaseous external environment and the blood. This exchange process occurs in the alveolar region of the lungs.[1] Other animals, such as insects, have respiratory systems with very simple anatomical features, and in amphibians even the skin plays a vital role in gas exchange. Plantsalso have respiratory systems but the directionality of gas exchange can be opposite to that in animals. The respiratory system in plants also includes anatomical features such as holes on the undersides of leaves known as stomata.[2]
The respiratory system is the anatomical system of an organism that introduces respiratory gases to the interior and performs gas exchange. In humans and other mammals, the anatomical features of the respiratory system include airways, lungs, and the respiratory muscles. Molecules of oxygen and carbon dioxide are passively exchanged, by diffusion, between the gaseous external environment and the blood.
Spiracle, or a respiratory tube
Respiratory surface is the region where gaseous exchange occur. It includes respiratory bronchiole, alveolar duct and alveolus. Large surface surface is needed the increase the diffusion rate of gaseous. Respiratory surface also exhibit other properties such as moist and only one-cell thick. Nika G.
gaseous exchange
Smoking causes damage to the respiratory system, including the cilia in the lungs. This leads to inflammation and narrowing of the airways, making it harder to exchange gases like oxygen and carbon dioxide. Over time, smoking can impair lung function and decrease the efficiency of gaseous exchange, leading to respiratory problems like chronic obstructive pulmonary disease (COPD).
Gaseous exchange surfaces inside the body of terrestrial animals help to protect the delicate respiratory membranes from drying out and damage. This internal arrangement also helps to regulate gas exchange and maintain proper moisture levels, especially in dry environments. Additionally, it provides a more controlled and efficient system for exchanging gases such as oxygen and carbon dioxide with the bloodstream.
Gaseous exchange is a natural process, ventilation is a forced process.
The site for gaseous exchange is the lungs. Carbon dioxide is exhaled and is substituted for oxygen which is inhaled.