Introduction to Psychology

This psychology lesson offers a quick tour of the more important parts of the brain. Learn to identify the parts of the picture for this lesson!

Learn about the several interconnected nervous systems in your body. Find out how they are arranged, which does what, and how they affect one another.

Discover how your brain sends signals to all parts of your body, and vice versa. It involves chemicals, ions, insulation, and maybe even a party!

Learn about the unsung heroes of the nervous system: glia! Glial cells can help or hinder, heal or hurt, but they don't get any respect—except here.

The dendrite's connected to the soma! The soma's connected to the axon! The axon's connected to—what? Learn about the structure of the neuron in this lesson!