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Posted by / 04-Sep-2017 14:56

Neurons are diverse with respect to morphology and function.Thus, not all neurons correspond to the stereotypical motor neuron with dendrites and myelinated axons that conduct action potentials.An action potential can be divided into several sequential phases: threshold, rising phase, falling phase, undershoot phase, and recovery.

Nevertheless, as more voltage-gated K channels become inactivated, the membrane potential recovers to its normal resting steady state..Plastic change often results from the alteration of the number of neurotransmitter receptors located on a synapse.There are several underlying mechanisms that cooperate to achieve synaptic plasticity, including changes in the quantity of neurotransmitters released into a synapse and changes in how effectively cells respond to those neurotransmitters.As Na ions enter the cell, the membrane potential is further depolarized, and more voltage-gated sodium channels are activated.Such a process is also known as a positive feedback loop.

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There are two families of receptors: ionotropic and metabotropic receptors.