The lung / swim bladder originated as an outgrowth of the gut, forming a gas-filled bladder above the digestive system.

The gas-filled bladder, or pneumatophore, remains at the surface, while the remainder is submerged.

One of the polyps, a gas-filled bladder called the pneumatophore ( commonly known as the sail ), enables the organism to float.

The swim bladder of a ruddThe swim bladder, gas bladder, fish maw or air bladder is an internal gas-filled organ that contributes to the ability of a fish to control its buoyancy, and thus to stay at the current water depth without having to waste energy in swimming.

The swim bladder normally consists of two gas-filled sacs located in the dorsal portion of the fish, although in a few primitive species, there is only a single sac.

This differs from the method of flotation used by fish, which involves a gas-filled swim bladder.

" ( Penzel 29 ) Murdoch ’ s first invention was a lantern with a gas-filled bladder attached to a jet.

Unlike bony fish, sharks do not have gas-filled swim bladders for buoyancy.

Species like Fucus vesiculosus produce numerous gas-filled pneumatocysts ( air bladders ) to increase buoyancy.

It is a chambered, gas-filled shell used for buoyancy control ; its siphuncle is highly modified and is on the ventral side of the shell.

There is a tendency for the chambers to develop cameral deposits, which were used as ballast to balance the long gas-filled shell.

The tiny individual animals are specialized to perform specific tasks ; some form the central gas-filled disc ( which is a golden brown colour and hardened by chitinous material ) essential to keeping the colony afloat ; others form radiating tentacles for tasks such as catching prey, reproduction, and digestion.

Estate cars ( and optionally, saloons and coupes ) had Citroen-like self-leveling rear suspension with suspension struts rather than shock absorbers, gas-filled suspension spheres to provide damping and an under bonnet pressurizing pump.

The radiation sensing element is an inert gas-filled Geiger-Muller tube ( usually containing helium, neon or argon with halogens added ) which briefly conducts electrical charge when a particle or photon of radiation makes the gas conductive by ionisation.

While at General Electric, from 1909 – 1950, Langmuir advanced several basic fields of physics and chemistry, invented the gas-filled incandescent lamp, the hydrogen welding technique, and was awarded the 1932 Nobel Prize in Chemistry for his work in surface chemistry.

He worked in diverse fields: applying the Laue effect to the new field of X-ray analysis of crystals ; using hypnosis to improve measurement-reading accuracy ; working with Ivan Pavlov's laboratory ; and using gas-filled lamps as measuring devices.

It was also lowered 10 mm ( 0. 39 in ) at the front and 15 mm ( 0. 59 in ) at the rear, and fitted with stiffer springs and gas-filled shock absorbers all round.

The switch has a set of contacts inside an evacuated or inert gas-filled glass tube which protects the contacts against atmospheric corrosion ; the contacts are made of magnetic material that makes them move under the influence of the field of the enclosing solenoid.

Some exceptions to this are dealt with in the section about gas-filled tubes below.

The rockoon ( a portmanteau of rocket and balloon ) was a solid fuel rocket that, rather than being immediately lit while on the ground, was first carried into the upper atmosphere by a gas-filled balloon.

Nikola Tesla claimed as early as 1899 to have used a high frequency current to light gas-filled lamps from over away without using wires.

Because of this, a halogen lamp can be operated at a higher temperature than a standard gas-filled lamp of similar power and operating life, producing light of a higher luminous efficacy and color temperature.

Therefore, many insulating materials function simply by having a large number of gas-filled pockets which prevent large-scale convection.

In 1951, his son found Jones dead in a gas-filled kitchen.

His experiments with designs for an aeroplane and a hot-air balloon led him to conceive a project for an actual airship, or rather a ship to sail in the air, consisting of a triangular gas-filled pyramid, but he died before he was able to build a craft to this design.

* 1965 ( approximate )-The 12-beam " 4 pi laser " using ruby as the lasing medium is developed at LLNL includes a gas-filled target chamber of about 20 centimeters in diameter.

If both logs are displayed on compatible scales, they overlay each other in liquid-filled clean formations and are widely separated in gas-filled formations.

Two additional amplifiers detected this low frequency and triggered the 4th tube ( a gas-filled thyratron ) to set off the detonator.

The first event ever held at the speedway was a helium gas-filled balloon competition on Saturday, June 5, 1909, more than two months before the oval was completed.

The diagnosing of bladder cancer can also be done with a Cysview guided fluorescence cystoscopy ( blue light cystoscopy, Photodynamic diagnosis ), as an adjunct to conventional white-light cystoscopy.

Kramer shows an entrepreneurial bent with " Kramerica Industries ," for which he devises plans for a pizza place where customers make their own pie (" Male Unbonding "), a bladder system for tankers that will " put an end to maritime oil spills " (" The Voice "), and a product that will put ketchup and mustard in the same bottle.

** Attention to mechanical compatibility of a filtration system with the bladder, or with a Nalgene-style bottle that may be carried to fill the bladder, can be worthwhile.

Surgical interventions for IC / BPS include transurethral fulguration and resection of ulcers, using electricity / laser ; bladder denervation, where some of the nerves to the bladder are cut ( Modified Ingelman-Sundberg Procedure ); bladder augmentation ; bladder removal ( cystectomy ); electrical nerve stimulation, similar to TENS, where an electrical unit is implanted in the body and provides continuous or intermittent electrical pulses to the affected areas ( Interstim ); spinal cord stimulation ( SCS ), where an electrical unit is implanted that provides electrical stimulation to the spinal cord, interfering with pain reception to the brain ( ANS / Advanced Neuromodulation Systems spinal Cord Stimulator ); and the implantation of the intrathecal pain pump, where very small amounts of medication, like morphine sulfate, dilaudid, or baclofen are released into the cerebrospinal fluid via a catheter stemming from the small electrical pump, requiring only about 1 / 100 to 1 / 300 the amount of medication needed orally for the same therapeutic benefit, but with significantly fewer side effects.

In some fish, mainly freshwater species ( e. g. common carp, wels catfish ), the swim bladder is connected to the labyrinth of the inner ear by the Weberian apparatus, a bony structure derived from the vertebrae, which provides a precise sense of water pressure ( and thus depth ), and improves hearing.

* Swim bladder, in bony fishes, an internal organ that helps to control buoyancy

Scuba harness with backplate and back mounted " wing " buoyancy compensator 1 ) DV / Regulator first stage 2 ) Cylinder valve 3 ) Shoulder straps 4 ) Buoyancy compensator bladder 5 ) Buoyancy compensator relief and lower manual dump valve 6 ) DV / Regulator second stages ( primary and “ octopus ”) 7 ) Console ( pressure gauge, depth gauge & compass ) 8 ) Dry-suit inflator hose 9 ) Backplate 10 ) Buoyancy compensator inflator hose and inflation valve 11 ) Buoyancy compensator mouthpiece and manual dump valve 12 ) Crotch strap 13 ) Waist straps

In early life stages, fish have to rise to the surface to fill up their swim bladders, however, in later stages the connection disappears and the gas gland has to introduce gas ( usually oxygen ) to the bladder to increase its volume and thus increase buoyancy.

In some fish, a rete mirabile fills the swim bladder with oxygen, increasing the fish's buoyancy.

This is similar to other sharks, such as the basking shark and the frilled shark, and contributes to the buoyancy of the shark, which, like all sharks, lacks a swim bladder.

* The gas bladder, or swim bladder, is an internal organ that contributes to the ability of a fish to control its buoyancy, and thus to stay at the current water depth, ascend, or descend without having to waste energy in swimming.

A buoyancy compensator also called a buoyancy control device, BC, BCD, stabilizer, stabilisor, stab jacket, wing or ABLJ depending on design, is a piece of diving equipment containing a bladder which is worn by divers to establish neutral buoyancy underwater and positive buoyancy on the surface, when needed.

The buoyancy is controlled by adjusting the volume of air in the bladder.

This developed, in later species, into the lung and ( later ) the swim bladder, used to keep the fish at neutral buoyancy.

Like other elasmobranchs, sawfish lack a swim bladder and use a large, oil-filled liver to control buoyancy.

Another example is the lungs of many primitive fish, which evolved into the lungs of terrestrial vertebrate but also underwent exaptation to become the gas bladder, a buoyancy control organ, in more advanced fish.

* An inflatable buoyancy bladder known as a wing, which is sandwiched between the backplate and the cylinder ( s ).

Omitting the buoyancy bladder reduces the setup to a plain backpack harness if the breathing set needs to be used on land.

The wing is an inflatable buoyancy bladder, similar to that found in other varieties of BCD, with the exception that it is not contained in or permanently attached to the harness part of a BCD.

The most significant effects of this division are shifting the buoyancy bladder from the diver ’ s chest to his back and the modularity of the system, allowing buoyancy cells, harnesses, and plates to be interchanged as needed.