Nerve Impulse

Loading results

In the News

powered by Ovast

  • Green Blog: Protecting Killer Frogs From Killer Humans

    nytimes.com 3 weeks, 1 day ago

    A new preserve in a mountainous region of western Colombia is intended to help protect the golden poison frog, whose skin is covered by a secretion of deadly alkaloid poison that can kill humans within minutes.

  • Stand Up, Walk Around, Even Just For '20 Minutes'

    npr.org 3 weeks ago

    New York Times "Phys Ed" columnist Gretchen Reynolds has some simple advice for staying healthy: Stand up. Move around. In her new book, The First 20 Minutes, she explains the hazards of a sedentary lifestyle, and details some of the surprisingly simple ways to stay fit.

Photos

powered by
  • Don Giovanni. and Of The Earth - via Daymix
  • Of The Earth – Pictures - via Daymix
  • Of The Earth – Pictures - via Daymix
  • License - via Daymix
  • License - via Daymix

On Twitter

Loading tweets for 'Nerve Impulse'

Videos

Loading videos for 'Nerve Impulse'

Additional Info

via Wikipedia
In physiology, an action potential is a short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called excitable cells, which include neurons, muscle cells, and endocrine cells, as well as in some plant cells. In neurons, they play a central role in cell-to-cell communication. In other types of cells, their main function is to activate intracellular processes. In muscle cells, for example, an action potential is the first step in the chain of events leading to contraction. In beta cells of the pancreas, they provoke release of insulin. Action potentials in neurons are also known as "nerve impulses" or "spikes", and the temporal sequence of action potentials generated by a neuron is called its "spike train". A neuron that emits an action potential is often said to "fire".

Recipes

via Open Source Food
Loading recipes for 'Nerve Impulse'

Weather -

Loading weather for 'Nerve Impulse'

Web Search Results

powered by
Loading web results for 'Nerve Impulse'
Loading More Stories