neurotransmitters
The space between neurons is called the synaptic cleft. It is where neurotransmitters are released by the presynaptic neuron, travel across the cleft, and bind to receptors on the postsynaptic neuron to transmit chemical messages.
The answer is NEUROTRANSMITTER.
There is not just one chemical secreted into synapses (the gaps between neurons); instead, there are many chemicals secreted from the terminal buttons of neurons into the synapses. They are called "neurotransmitters."
synapse
Two neurons
This gap is called the synaptic cleft.
Neurotransmitters are released into the synapse (the space between neurons). These can be a variety of chemicals and ions, including serotonin, dopamine, and GABA.
A neuron is a nerve cell. A synapse is a gap between the sending and receiving neurons, where there are neurotransmitters responsible for transporting chemicals to the receiving neuron. (A neurotransmitter is a chemical messenger.)
the gooch
Synapses
It's a 'bridge' where the neurotransmitters jump from one neuron to the other. It is called synapse. This is a simple notion that I have about this subject. For a complete review involving this part of the brain and how it works see the link to "Neuron" below.
gap allows information to jump between neurons