Synapse
Also known as: Synaptic Cleft; Synaptic Junction
Description
The Synapse is the minute space (approximately 200 nanometers across) that exists between the Presynaptic Membrane of Axons and the Postsynaptic Membrane of receiving (normally) Dendrites.
Biological Functions of Synapses
Nervous System
When Nerve Impulses reach a Synapse they cause the release of a Neurotransmitter which diffuses across the Synapse and triggers an further impulse in the Postsynaptic Membrane of Dendrite of the next Neuron.
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