Sometimes, dyspepsia is a more sudden, noticeable (acute) sensation. Depending on the cause of the dyspepsia, people may have other symptoms such as a poor appetite, nausea, constipation, diarrhea, flatulence, and belching. For some people, eating makes symptoms worse. For others, eating relieves symptoms.
An X-ray machine is essentially a camera. Instead of visible light, however, it uses X-rays to expose the film. X-rays are like light in that they are electromagnetic waves, but they are more energetic so they can penetrate many materials to varying degrees.
An X-ray tube is a device for producing X-rays. In it, a cathode releases electrons, and the tubeâs high voltage sends those electrons racing toward a piece of metal, the anode (often tungsten, though the type of metal for the anode depends on the application). When electrons hit the metal, the tube produces X-rays.