What are the three parts of the synapse and what are their functions?

The three parts of a synapse are the presynaptic terminal, the synaptic cleft, and the postsynaptic membrane. The presynaptic terminal releases neurotransmitters into the synaptic cleft, which is the gap between the two neurons. These neurotransmitters then bind to receptors on the postsynaptic membrane, leading to changes in the postsynaptic neuron's activity. This process enables communication between neurons and is essential for transmitting signals throughout the nervous system.