Communication at chemical synapses requires release of neurotransmitters. (B) At chemical synapses, there is no intercellular continuity, and thus no direct flow of current from pre- to postsynaptic cell. This may be the first definitive example of neurons communicating chemically where classical synapses are not present. A synapse is the place where two neurons join in such a way that a signal can be transmitted from one to the other. Explanation: A chemical synapse is a gap between two neurons where information passes chemically, in the form of neurotransmitter molecules. Sherwood L., stikawy (2007). Explanation: A chemical synapse is a gap between two neurons where information passes chemically, in the form of neurotransmitter molecules. Homosynaptic plasticity can also be postsynaptic in nature. Proteins in the PSD are involved in anchoring and trafficking neurotransmitter receptors and modulating the activity of these receptors. Synaptic function is to transmit nerve impulses between two nerve cells (neurons) or between a neuron and muscle cell. Where chemical synapses can be excitatory or inhibitory, electrical synapses are excitatory only. Human Physiology: From Cells to Systems (MindTap Course List) 9th Edition. Verywell Health's content is for informational and educational purposes only. The transmission provides an extra regulation nervous, system as the presynaptic region either activates or inhibits the cells of the postsynaptic, region (Jewett & Sharma, 2019). At level of synapse, impulse gets conducted from one neuron to another due to release of neurotransmitters, like ACh, noradrenaline, serotonin, etc. Course Hero is not sponsored or endorsed by any college or university. [18], Receptors on the opposite side of the synaptic gap bind neurotransmitter molecules. 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