In this lesson on the brain's neural networks, learners investigate the structure and function of the neuron. They discover ways in which engineers apply this knowledge to the development of devices that can activate neurons. Includes...

"Are you ready to go into the spaceship? Remember to stay very still!" This is what you hear before the bed you are lying down on starts to slide into a long, tube shaped machine. You can almost imagine that it really is a spaceship, and...

[Free Registration/Login may be required to access all resource tools.] The nervous system is made up of nerves. A nerve is a bundle of nerve cells. A nerve cell that carries messages is called a neuron. The messages carried by neurons...

Khan Academy answers a question about hyperpolarization and depolarization with a written explanation and links to helpful videos.

This is a five-question quiz pertaining to neurotransmitter removal from the synapse.

Brain cells called neurons send information and instructions throughout the brain and body. The information is sent via electro-chemical signals known as action potentials that travel down the length of the neuron. These neurons are then...

This article explains how the nervous system transmits signals along and between neurons.

Labeled illustration of a neuron, with callouts for the nerve body, dendrites, axon, and endings.

This website provides information on our chemical senses. "Students learn how to investigate the olfactory system and then find out how to plan and carry out their own experiments."