The Neuron

Basic Anatomy of a Neuron

Functions of the neuron and its parts

The Neural Impulse

The neuron transmits signals in the form of neural impulses that race at about 100 meters/second from the base of the axon where it connects to the soma to the terminal buttons. In brief, here's how it works:

The Synapse and the Neuromuscular Junction

How Drugs Affect the Synapse or Neuromuscular Junction

Most psychoactive drugs do their work by affecting events at the synapse. There are three main ways in which drugs can affect the synapse or neuromuscular junction:

Excitatory versus Inhibitory Synapses

Synapses can be either excitatory or inhibitory.

Some Principles of Operation