The trigger zone of a neuron
A)is located at the axon hillock
B)is located in the axon terminal
C)contains only chemically gated channels
D)conducts graded potentials to the axon
E)causes action potentials to move toward the cell body and dendrites

Question

Quizplus · Accepted Answer

The trigger zone of a neuron is the region where the neuron decides whether to generate an action potential or not. It is located at the axon hillock, which is the cone-shaped region where the axon originates from the cell body. This region contains a high density of voltage-gated ion channels, which can open in response to a depolarizing stimulus and generate an action potential if the threshold is reached.

The Trigger Zone of a Neuron