ONLINE SUBSTITUTE CERTIFICATE APPLICATION. 1  You will first need to create a profile in our certification system. 2  After you have created a profile in our certification system, find the applications link in the menu on the left hand side of the screen to see a list of application types.
Neurotransmitters and Neuroactive Peptides. Communication of information between neurons is accomplished by movement of chemicals across a small gap called the synapse. Chemicals, called neurotransmitters, are released from one neuron at the presynaptic nerve terminal.ommunication of information between neurons is accomplished by movement of chemicals across a small gap called the synapse.
1 An electrical impulse travels along an axon. 2  This triggers the nerve-ending of a neuron to release chemical messengers called neurotransmitters. 3  These chemicals diffuse across the synapse (the gap) and bind with receptor molecules on the membrane of the next neuron.he chemical diffuses across the gap makes the next neurone transmit an electrical signal. 1  An electrical impulse travels along an axon. 2  This triggers the nerve-ending of a neuron to release chemical messengers called neurotransmitters.