Question

If excitatory postsynaptic potentials (EPSPs) are produced nearly simultaneously through two different synapses on the same postsynaptic neuron, the EPSPs can also add together creating _______. A. a temporal summation B. a spatial summation C. a tetanus D. the refractory state

Answer 1

If excitatory postsynaptic potentials (EPSPs) are produced nearly simultaneously through two different synapses on the same postsynaptic neuron, the EPSPs can add together to create spatial summation.

Spatial summation is the summation that occurs in the nervous system in which, the action potential on the postsynaptic neuron is generated as a result of many presynaptic neurons' production of subthreshold. As a result, in this instance of simultaneous summation, numerous ESPSs contribute to the production of an action potential.

while, when several subthresholds are produced over time by a single presynaptic neuron, it is referred to as temporal summation in the nervous system. The total of these subthresholds reaches a critical point when it is sufficient to generate or fire an action potential on the postsynaptic neuron. Each subthreshold in this case is produced by the presynaptic neuron's release of neurotransmitters into the synaptic gap.

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