Читать книгу Neurobiology For Dummies - Frank Amthor - Страница 90
Gating the Membrane: Ion Channels and Membrane Potentials
ОглавлениеIn This Chapter
Minding the membrane channels
Understanding neurons as batteries
Going with the flow through ion pumps
Meeting Nernst and Goldman
Sending signals with electricity
Exploring sodium and potassium channels
Getting to know glia
If I told you that your brain is full of batteries, you’d probably wonder if I was insulting your intelligence or just plain crazy. But after you read this chapter, you’ll see that neither is the case! Your brain’s neurons are cells that specialize in rapid and precise electrical communication, integration, and processing of information. In order for neurons to perform these wonderfully complex tasks, they require a number of different cells and other components, such as membrane channels, gates, receptors, transporters, and more. In this chapter, I explore what neurons need in order to be able to detect and respond to other neurons, substances in the environment, and energy.