What exactly are synapses?
Neurons are cells that pass messages to other cells. They are like a super highway in the brain. Neurons have multiple connections to other neurons. A synapse is like the toll booth. It is the space between cells through which the information passes. Synaptic transmission between cells occurs through chemicals called neurotransmitters. Neurotransmitters are released by axons and detected by dendrites. This is how messages are transmitted through the brain.
"Synapses are the gateway for information flowing into the brain, the means of communication within the brain, and the means by which behavior emerges from the brain."
Synapses are where two neurons meet and chemicals called neurotransmitters are passed from one neuron to the other. These neurotransmitters are responsible for a multitude of actions and processes. A few examples of neurotransmitters are dopamine, epinephrine,norepinephrine, and serotonin. Neurotransmitters are chemicals that are synthesized in the neuronal axon and released or transferred to another neuron in response to a nerve impulse. Many diseases are due to either an overabundance of a neurotransmitter or a neurotransmitter deficiency. One example is Parkinson disease in which the problem is a lack of the neurotransmitter Dopamine