Antidromic

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Antidromic

Antidromic (pronunciation: an-ti-dro-mic) is a term used in neuroscience to describe the conduction of nerve impulses in a direction opposite to their normal, physiological direction.

Etymology

The term 'antidromic' is derived from the Greek words 'anti', meaning 'against', and 'dromos', meaning 'running course'.

Definition

In a normal physiological condition, nerve impulses or action potentials travel from the cell body of a neuron to its axon terminals, a direction known as orthodromic. However, under certain conditions, these impulses can travel in the opposite direction, from the axon terminals back to the cell body. This reverse conduction is referred to as antidromic.

Related Terms

  • Orthodromic: The normal direction of nerve impulse conduction, from the cell body to the axon terminals.
  • Axon: The long, slender projection of a neuron that conducts electrical impulses away from the neuron's cell body.
  • Neuron: The basic working unit of the brain, a specialized cell designed to transmit information to other nerve cells, muscle, or gland cells.
  • Action Potential: A short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory.

See Also

External links

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