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After neurotransmitters are synthesized, they are packaged and stored in vesicles.These vesicles are pooled together in terminal boutons of the presynaptic neuron.There are two families of receptors: ionotropic and metabotropic receptors.

The neurotransmitters then diffuse across the synaptic cleft and bind to postsynaptic receptors embedded on the postsynaptic membrane of another neuron.An action potential can be divided into several sequential phases: threshold, rising phase, falling phase, undershoot phase, and recovery.Following several local graded depolarizations of the membrane potential, the threshold of excitation is reached, voltage-gated sodium channels are activated, which leads to an influx of Na ions.Cellular neuroscience is the study of neurons at a cellular level.This includes morphology and physiological properties of single neurons.

The neurotransmitters then diffuse across the synaptic cleft and bind to postsynaptic receptors embedded on the postsynaptic membrane of another neuron.An action potential can be divided into several sequential phases: threshold, rising phase, falling phase, undershoot phase, and recovery.Following several local graded depolarizations of the membrane potential, the threshold of excitation is reached, voltage-gated sodium channels are activated, which leads to an influx of Na ions.Cellular neuroscience is the study of neurons at a cellular level.This includes morphology and physiological properties of single neurons.Some neurons such as photoreceptor cells, for example, do not have myelinated axons that conduct action potentials.