Introduction to neurons and glia. How the structure of a neuron allows it to receive and transmit information.

Sometimes different parts of different cells perform other functions, but these tend to be where the neuron receives its signal. And we'll talk more about what it means to receive and transmit a signal in …

My neuroscience textbook classifies any neuron with two neurites as bipolar, and the diagram shows what you describe: the bipolar neuron has two axons going in opposite directions.

Most of your synapses are chemical synapses, meaning that information is carried by chemical messengers from one neuron to the next. In the article on synapses, we discussed how synaptic …

Action potentials (those electrical impulses that send signals around your body) are nothing more than a temporary shift (from negative to positive) in the neuron’s membrane potential caused by ions …

The membrane potential of a resting neuron is primarily determined by the movement of K + ions across the membrane. So, let's get a feeling for how the membrane potential works by seeing what would …

Learn about synapses, the connections between neurons in the nervous system, and how they transmit signals efficiently on Khan Academy.

In neurons, the cell enters a state of hyperpolarization immediately following the generation of an action potential. While hyperpolarized, the neuron is in a refractory period that lasts roughly 2 milliseconds, …

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So let me start by showing where synapses happen, so first I'll draw the soma of a neuron in red, and a few dendrites, these branching processes of neurons in blue, one dendrite and here's another …