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.
The specialized chemicals that carry the signals across the intercellular gaps, or synapses, are called neurotransmitters. The ebb and flow of neurotransmittersâneurotransmissionâis thus an essential feature of the brain's response to experience and the environment.he neurotransmitter molecules drop off the receptors. Loose again in the synapse, they meet three fates: 1  Some attach to another receptor; 2  Some encounter an enzyme, a chemical that breaks them apart; and. 3  Some reenter the sending cell via a special pathway through the axon membrane, called a transporter.