What Is the Function of a Synapse?

The place where a neuron contacts another neuron is called a synapse. Synapses are the functionally connected parts of neurons, and they are also the key parts of information transmission. Observed under an optical microscope, you can see that the axonal tip of a neuron has branched multiple times, and the end of each small branch swells into a cup or sphere, called a synaptosome. These synaptosomes can contact the cell bodies or dendrites of multiple neurons to form synapses. Observed under the electron microscope, it can be seen that this synapse is composed of three parts: presynaptic membrane, synaptic space and post-synaptic membrane. Presynaptic and posterior membranes are slightly thicker than normal neuronal membranes and are specialized neuronal membranes. Synaptic vesicles contain a large number of synaptic vesicles near the anterior membrane. Synaptic vesicles contain chemicalstransmitters. The synaptic cleft is a very small gap between two neurons. It can be seen that these two neurons are only in contact with each other, and their cytoplasm is not connected.