Data from across disciplines strongly supports a stem vertebrate origin for gas exchange structures and function at the gills with the emergence of larger, more active fishes. However, the recent discovery of putative ionocytes in extant cephalochordates and hemichordates suggests that ion regulation...
Respiratory gas exchange and transport was measured in resting, unanesthetized dogfish ( Scyliorhinus stellaris) equipped with rubber bags glued around the gill slit areas on both sides for collection of expired water and bearing indwelling catheters in a peripheral artery and in the ventral aorta. ...
Gas exchange and ion regulation at gills have key roles in the evolution of vertebrates1,2,3,4. Gills are hypothesized to have first acquired these important homeostatic functions from the skin in stem vertebrates, facilitating the evolution of larger, more-active modes of life2,3,5. However,...
How does gas exchange occurs at the gills of a fish? How can pneumonia affect gas exchange? How does COPD affect the alveoli? How does smoking affect the alveoli in the lungs? How does pleural effusion affect breathing? Why are there so many alveoli in the lungs? What are some conditions...
respiratory system res·pi·ra·to·ry system (rĕs′pər-ə-tôr′ē) The system of organs and structures in which gas exchange takes place, consisting of the lungs and airways in air-breathing vertebrates, gills in fish and many invertebrates, the outer covering of the body in worm...
In mammals, the gas exchange surfaces are the lungs, which develop from the gut wall in the embryo. The larynx is formed from cartilage which formed...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our ...
Parameters on gas exchange in the gills were measured in eel acclimated for more than 2 weeks at 9.1±0.1, 25.8±0.6 and 33.5±0.2°C under normoxic and hypoxic condi-tions. Under normoxic condition, oxygen pressure of the dorsal aortic blood (Pa, o2) in-creased an...
The gills are organs in fish that directly contact the external water environment, and gas exchange is one of their main functions (Chen et al., 2023). Research has found that gill tissues have the ability to remodel. When fish are in low oxygen environments, gill tissues can increase their...
However, because accelerations in a flow field diminish rapidly with distance from the source, the lateral line system is most useful when a fish is near the source of the stimulus, e.g., within a few body lengths of moving prey (Denton and Gray, 1988). The frequency response and ...
How does exercise affect the gas exchange system? How does fluid imbalance affect gas exchange? How does gas exchange occurs at the gills of a fish? How do air masses form? How does air pressure control the atmospheric circulation? How do pneumatic engine valves work?