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axon

 [ak´son]
the process of a nerve cell along which impulses travel away from the cell body. It branches at its termination, forming synapses at other nerve cells or effector organs. Many axons are covered by a myelin sheath formed from the cell membrane of a glial cell. adj., adj ax´onal.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ax·on

(ak'son),
1. The single process of a nerve cell that under normal conditions conducts nervous impulses away from the cell body and its remaining processes (dendrites). It is a relatively even filamentous process varying in thickness from about 0.25 to more than 10 mcm. In contrast to dendrites, which rarely exceed 1.5 mm in length, axons can extend great distances from the parent cell body (some axons of the pyramidal tract are 40-50 cm long). Axons that are 0.5 mcm thick or more are generally enveloped by a segmented myelin sheath provided by oligodendroglia cells (in the brain and spinal cord) or Schwann cells (in peripheral nerves). Like dendrites and nerve cell bodies, axons contain many neurofibrils. With some exceptions, nerve cells synaptically transmit impulses to other nerve cells or to effector cells (muscle cells or gland cells) exclusively by way of the synaptic terminals of their axons.
2. In neurology and other clinical work, the term axon is also used as meaning dendrites (q.v.), which term is seldom used clinically.
[G. axōn, axis]
Farlex Partner Medical Dictionary © Farlex 2012

axon

(ăk′sŏn′) also

axone

(-sōn′)
n.
The usually long process of a nerve fiber that generally conducts impulses away from the body of the nerve cell.

ax′on·al (ăk′sə-nəl, ăk-sŏn′əl) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

axon

A thin elongated process of a neurone which transmits impulses from the neurone cell body to the axon terminus, which trigger the release of neurotransmitters.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

ax·on

(ak'son)
The single process of a nerve cell that under normal conditions conducts nervous impulses away from the cell body and its remaining processes (dendrites). Axons 0.5 mcm thick or thicker are generally enveloped by a segmented myelin sheath provided by oligodendroglia cells (in brain and spinal cord) or Schwann cells (in peripheral nerves). Nerve cells synaptically transmit impulses to other nerve cells or to effector cells (muscle cells, gland cells) exclusively by way of the synaptic terminals of their axons.
[G. axōn, axis]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

axon

The long fibre-like process of a nerve cell which, bundled together with many thousands of other axons, forms the anatomical structure known as a nerve. The axon conducts nerve impulses away from the nerve body.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

axon

the process of a NERVE cell which conducts impulses from the nerve cell body.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Axon

A process of a neuron that conducts impulses away from the cell body. Axons are usually long and straight.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

axon 

The threadlike process of a neuron which conducts nerve impulses from the cell body to the neuron's ending (bouton) where it is transmitted via a synapse to another neuron, muscle or gland. Syn. nerve fibre (when it is sheathed). See neuron; synapse.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

ax·on

(ak'son)
1. The single process of a nerve cell that under normal conditions conducts nervous impulses away from the cell body and its remaining processes (dendrites).
[G. axōn, axis]
Medical Dictionary for the Dental Professions © Farlex 2012
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