A columnist is someone who writes for publication in a series, creating an article that usually offers commentary and opinions. Columns appear in newspapers, magazines and other publications, including blogs. They take the form of a short essay by a specific writer who offers a personal point of view.
This positive spike constitutes the action potential: the electrical signal that typically moves from the cell body dlown the axon to the axon terminals. The electrical signal moves down the axon like a wave; at each 84 Ch apter 3 Biopsycholo gy point, some of the sodium ions that enter the cell diffuse to the neJ1.'t section of the axon, raising the charge past the threshold of excitation and triggering a new influx of sodium ions.
Answers. Best Answer: Hi, Note that action potential (the wave of depolarisation from the postsynaptic membrane via saltatory conduction) is unidirectional and therefore must travel towards away from the cell body down the axon.The impulse will always travel away from the cell body towards the axon.The cell body is smaller and branched off an axon in a sensory neurone, so will travel from dendrites towards and then away from the cell body, but away from the cell body and always down the axon. Hooe this helps! Source(s):he impulse will always travel away from the cell body towards the axon. The cell body is smaller and branched off an axon in a sensory neurone, so will travel from dendrites towards and then away from the cell body, but away from the cell body and always down the axon. Hooe this helps! Source(s):