WebDec 10, 2014 · Birds do not have a diaphragm, and the lungs do not expand and contract with respiration. Instead, large air sacs fill the thoracic (chest) and abdominal cavity. Birds use their breast and abdominal muscles in order to breathe. Contraction of these muscles expand the volume of the thoracoabdominal cavity, thereby inflating the air sacs, and ... http://people.eku.edu/ritchisong/birdrespiration.html
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WebSep 29, 2008 · Bird's have lungs, and no gills, because they are birds, which have lungs, and are not very aquatic. Some birds go underwater, like pelicans and penguins, but they have to surface from... WebFeb 10, 2016 · Birds, for example, avoid the mixing problem by moving air through their lungs in one direction via a series of 7 to 9 air sacs, connected by loopy tubes. Birds take oxygen into their body tissues when they … explain slewing mode of a stepper motor
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WebThe lungfish is the only known animal that has both gills and lungs. There are six species of lungfish, located in Africa, South America, and Australia. These fish have a unique respiratory system which allows them to breathe through both their gills and their lungs. The gills extract oxygen from water while the lungs extract oxygen from the air. WebFeb 22, 2024 · The respiratory system of birds works in a different way, using muscle movements to expand and contract body cavities to move air through the lungs and air … WebBird lungs have an opening on each end through which air flows into the interconnected air sacs in the neck, chest, and abdomen. ... Birds breath much more rapidly than humans do. A large parrot at rest requires 25 to 40 breaths per minute, compared with 12 to 16 breaths per minute for us. A canary requires 60 to 100 breaths per minute. b\u0026r construction lexington ky