### discharge | electrical discharge:

Nerve impulse
* are electrical discharge
  - mostly electrical signals along the dendrites
  - similar to electrical currents and can be switched on or off by the body
* can flow freely, racing to and from the brain at incredible speeds.
* cause nerve cells to release chemical messengers
  - the release of neurotransmitters from one nerve cell to the next
* flow from the brain, down the spinal cord, and to every organ and tissue in the body
* follow along the nerve fibers carried by voltage gated sodium channels.
* generated in the inspiratory area establish the basic rhythm of breathing.
* increase glial intercellular permeability.
* move quickly by jumping from node to node.
* respond back to the brain to confirm that the body is functioning properly.
* travel from the abdomen to the spinal cord, and then to various areas of the brain
  - in our bodies as electrical signals
  - over many neurons on their way to the brain
  - through the nerve cell as electrical impulses
  - to all parts of the body.
  * A 'nerve impulse' way of two nerve cells to communicate with one another. Nerve impulses are mostly electrical signals along the dendrites. Neurons, also known as brain cells, produce nerve impulses. A nerve impulse is also called an action potential

Nervous impulse
* All nervous impulses are of the same strength.
* is electrical discharge
* travel more rapidly and the sensitivity of nerve receptors is augmented.

Electrostatic discharge
* can create catastrophic or latent failures in electronic components
  - damage some parts of a cochlear implant
  - ignite the fuel vapor
* is the transfer of electrons from one object to another.

### discharge:

Eruption
* Most eruptions also produce lava flows
  - are on volcanic islands
* Most eruptions are phreatic , involving steam explosions caused by the contact of lava and water
  - and include the emission of gas and ash
  - prone to occur in the rift zones
* Most eruptions create craters
  - large craters
* Most eruptions generate lava flows
  - pyroclastic flows
* Most eruptions produce ash plumes
  - gases
* Most eruptions produce large ash plumes
  - release gases
* Some eruptions cause volcano landslide
  - change climates
  - generate pyroclastic flows
  - kill animals
  - last only a few hours whereas others last weeks, months, and years
  - occur on volcanic islands
  - only contain lava and hot gas
  - produce lavas
* alter availability.
* are actions
  - also more likely to appear around menses
  - emergence
  - highly variable in size and explosiveness
  - symptoms
* can also cause tsunamis, volcanic earthquakes, or the release of suffocating gases
  - have effects
  - influence bird migration, roosting, flying ability, and feeding activity
  - occur when mud and sand are squeezed upwards by seismic forces
* force people to abandon their land and homes.
* happen when pressure builds up inside a volcano, forcing ash and lava out the top.
* have devastate effects
  - impact
  - negative impact
* increase in frequency the closer comets get to the sun.
* is discharge
* lead to destruction.
* occur in places
  - when the fields rearrange to form a simpler, lower-energy configuration
* play roles.
  - debris
* pump out gases, especially carbon dioxide.
  - trapped gas below crust
* result in destruction.
* take place because molten rock is forced through solid rock by gases and lower density.
* tend to consist of large amounts of fragmented material released into the atmosphere.
+ Caldera, Larger calderas
  * Eruptions forming even larger calderas are known.

### discharge | eruption:

Drug eruption
* can occur up to four weeks after exposure to a drug usually an antibiotic.
* occur in papulosquamous, eczematous, vesiculobullous, and urticarial forms.