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The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ in bony fish (but not cartilaginous fish [1]) that functions to modulate buoyancy, and thus allowing the fish to stay at desired water depth without having to maintain lift via swimming, which expends more energy. [2]
Physoclisti are, collectively, fishes that lack a connection between the gas bladder and the alimentary canal, with the bladder serving only as a buoyancy organ. Addition and removal of the gases from the gas bladder in such physoclistous fishes occurs through specialised structures called the gas gland and ovale respectively. The pneumatic ...
Swim Bladder Disease: Common in fish like goldfish and bettas, swim bladder issues can make it difficult for them to swim properly. Treatment costs are generally minimal, around $50 to $100 for ...
This allows the gas bladder to be filled or emptied via the mouth. This not only allows the fish to fill their bladder by gulping air, but also to rapidly ascend in the water without the bladder expanding to bursting point. In contrast, fish without any connection to their gas bladder are called physoclisti.
Bladder cancer is the 11th most common cancer diagnosed in the UK, according to Cancer Research UK, with around 10,500 new cases diagnosed each year. The cancer is more common in men, and people ...
At just 19 years old, Eldiara Doucette — known on social media as "Bionic Barbie" — was diagnosed with synovial sarcoma, a rare form of soft tissue cancer that affects only 1,000 people per ...