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Synapses are gaps or junctions between two neurons. At the synapse one neuron sends a signal to another neuron. There are two types of synapse: Electrical and Chemical.[1]

Structure of the synapse

At the synapse the two neurons do not touch. The axon terminal from one neuron comes very close to the dendrite of the other neuron. The axon terminal sends the signal. The dendrite receives the signal. The space in the middle is called the synaptic cleft [2]

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  1. Virginia Commonwealth University; Prof. D. C. Mikulecky Presentation.
  2. Biology. By Kenneth Miller; Joseph Levine (2002). Prentice Hall. p. 900. ISBN 978-0132013499