What are the spaces between nerve cells called?

The space between nerve cells is called a synapse. It is a gap used for communication between nerve cells. To transmit an electrical signal from one nerve cell to another, chemicals are released into the synapse by one nerve cell and picked up by the other nerve cell. read more

This is an empty space between nerve cells called synaptic cleft. Synaptic cleft is microscopic gap between neurons and it helps to decode the message . when electric signals reaches to synaptic ending , it is translated into chemical message and then diffuses across synaptic cleft to other neuron. read more