lungesystemer
Lungesystemer, often translated as lung systems or breathing systems, refers to the anatomical and physiological structures involved in respiration in living organisms. This encompasses the mechanisms by which organisms exchange gases, primarily taking in oxygen and expelling carbon dioxide. In terrestrial vertebrates, this typically involves lungs, a network of airways (trachea, bronchi, bronchioles), and muscles that facilitate breathing, such as the diaphragm and intercostal muscles. The lungs are spongy organs where oxygen from inhaled air diffuses into the bloodstream, and carbon dioxide from the blood diffuses into the air to be exhaled.
In aquatic organisms, lungesystemer can vary significantly. Some fish possess lungs, similar to terrestrial vertebrates, allowing