Communication between two neurons at a chemical synapse involves:

Chemical synapses are the most common type of synapses in the nervous system. They transmit signals from one neuron to another by the release of chemical messengers called neurotransmitters. The communication between two neurons at a chemical synapse involves:

Electrochemical, chemical, and electrical processes:

The communication between two neurons at a chemical synapse involves several processes, including:

- Electrical process: When a nerve impulse reaches the end of an axon, it triggers the opening of voltage-gated calcium channels, which allow calcium ions to flow into the presynaptic neuron. This influx of calcium ions triggers the release of neurotransmitters from synaptic vesicles in the presynaptic neuron.

- Chemical process: The released neurotransmitters diffuse across the synaptic cleft and bind to receptors on the postsynaptic neuron. This binding causes changes in the postsynaptic neuron's membrane potential, leading to either depolarization or hyperpolarization.

- Electrochemical process: The depolarization or hyperpolarization of the postsynaptic neuron can trigger an action potential if the membrane potential reaches the threshold. This action potential will then propagate down the axon of the postsynaptic neuron, leading to the release of neurotransmitters at its synapses.

Predominately an electrical process:

While electrical processes are involved in the communication between neurons, they are not the predominant processes. The release of neurotransmitters from the presynaptic neuron and their binding to receptors on the postsynaptic neuron are the primary processes in chemical synapses.

Exclusively chemical process:

The communication between two neurons at a chemical synapse is not exclusively a chemical process, as electrical processes are also involved in the depolarization or hyperpolarization of the postsynaptic neuron.

Largely an electrical process followed by chemical process:

The communication between two neurons at a chemical synapse is not largely an electrical process followed by a chemical process. While electrical processes are involved, they are not the primary processes in chemical synapses. The release of neurotransmitters and their binding to receptors on the postsynaptic neuron are the primary processes.