Catódico

Catódico refers to anything associated with a cathode. A cathode is the electrode through which a conventional electric current leaves a polarized electrical device. In a vacuum tube, such as a cathode ray tube, the cathode is typically a heated element that emits electrons. These electrons are then accelerated and directed towards a target, producing a beam. This principle is fundamental to technologies like old televisions and oscilloscopes.

In electrochemistry, the cathode is where reduction occurs. Reduction is a chemical process where a species gains electrons. For example, in electrolysis, the cathode is the negative electrode where positive ions migrate and receive electrons, becoming reduced. Conversely, the anode is where oxidation occurs, and electrons are lost. The distinction between cathode and anode is crucial for understanding how batteries and electrolytic cells function.

The term "catódico" can also appear in the context of medical treatments, such as cathodic stimulation. This involves applying an electric current to nerves or muscles, typically through electrodes placed on the skin. The cathode in this setup plays a role in initiating or modulating nerve impulses. The specific application and parameters of cathodic stimulation vary depending on the intended therapeutic outcome.