Excitatory signals to a neuron must exceed inhibitory signals by a minimum intensity in order to trigger

Question

Quizplus · Accepted Answer

Excitatory signals must reach a threshold intensity in order to trigger an action potential, which is the electrical signal that travels down the neuron's axon to convey information to other neurons or muscles. Reuptake refers to the process of neurotransmitter molecules being taken back up into the presynaptic neuron, and does not involve the triggering of an action potential. A refractory period refers to a brief period of time after an action potential during which the neuron is unable to fire another action potential, but it is not directly related to determining whether a signal triggers an action potential. Neurogenesis refers to the process of new neurons being generated and does not apply to this question.

Excitatory Signals to a Neuron Must Exceed Inhibitory Signals by a Minimum