The Basics

Neurotransmitters are released from vesicles in axon terminals to exert an effect on the dendrites of the postsynaptic neuron or effector muscle/organ. The effect can be either excitatory or inhibitory, depending on the neurotransmitter and the receptors on the affected neuron/muscle/organ. Furthermore, neurotransmitters can either work directly by binding to receptors on ion channels, or they can work indirectly via a 2nd messenger system. When their task in complete, they are removed from the synapse in 3 potential ways: diffusion, degraded by enzymes, or reuptake pumps in the presynaptic axon terminals.

The Details

Click the link below for information on several of the most common neurotransmitters.

Neurotransmitters to Know

Page last modified on Monday July 24, 2017 19:05:15 EDT