Neural Messages Module Map | |
|
Purpose To describe and simulate the basic principles of axonal and synaptic transmission in the nervous system. Summary The three basic parts of a neuron are drawn and discussed, then axonal transmission is described and simulated as a neural impulse moves along an enlarged axon, changing the electrical potential across the axon membrane as it proceeds. Next the module adds two more neurons to the picture to explain the process of synaptic transmission. One of the synapses is enlarged to illustrate the release of neurotransmitters and the stimulation of receptors in the next neuron. The module concludes with a brief simulation contrasting excitatory and inhibitory synapses. |
|
|
The neuron Types of neurons Parts of a neuron Neural diversity Axonal conduction Neural impulses The axon membrane Axon chemistry Axon polarization Depolarization Repolarization Sending the message |
The synapse Synaptic transmission Synaptic vesicles Neurotransmitters Stimulating the receptors Excitatory / inhibitory synapses Integration of inputs Summary References |
|
Click here to open the worksheet that accompanies this module. (Requires Adobe Acrobat Reader. Click here to get Adobe Acrobat Reader. Internet connection required to download plug-in.) | |