Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.
Related to axon: Dendrites


see nervous systemnervous system,
network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment. Virtually all members of the animal kingdom have at least a rudimentary nervous system.
..... Click the link for more information.
; synapsesynapse
, junction between various signal-transmitter cells, either between two neurons or between a neuron and a muscle or gland. A nerve impulse reaches the synapse through the axon, or transmitting end, of a nerve cell, or neuron.
..... Click the link for more information.



a neurite, or axis cylinder; the process of a nerve cell along which neural impulses proceed from the cell body to innervated organs and other nerve cells.

Only one axon branches off each neuron, or nerve cell. The nutrition and growth of the axon depends on the neuron body; upon transection of the axon, its peripheral portion dies, but the central portion preserves its viability. Large animals possess axons—for example, those proceeding from the spinal cord to the extremities—that may reach a length of one meter or more when their diameter is several millimicrons (mμ). In some animals—for example, squid and fish—huge axons are found which measure hundreds of mμ in thickness. In axoplasm—that is, the protoplasm of axons—there are extremely thin fibrils, known as neurofibrils, as well as mitochondria and the endoplasmic network. Depending on whether axons are covered with a myelic (fatty) membrane or not, they are known as medullated or nonmedullated nerve fibers. The structure of the membranes and the diameters of the axons that constitute the nerve fiber are the factors that determine the rate of stimulus transmission along the nerve. The terminal sections of the axon, or terminals, branch off and make contact with other nerve, muscle, and gland cells. Stimuli are transmitted through these contact points, which are known as synapses. A nerve is a collection of axons.


The process or nerve fiber of a neuron that carries the unidirectional nerve impulse away from the cell body. Also known as neuraxon; neurite.
References in periodicals archive ?
Despite the relatively rare occurrence of such incidents, Axon is aware of the danger they pose to the company's business and in part that risk explains the company's desire to shift both its business model and its name away from Taser-brand CEWS that carry the risk of causing injury or death.
The ZTE Axon M creates an entirely new foldable smartphone category, one that ZTE is committed to invest and lead the way in.
An RNAi screen for regulators of axon regeneration identified the MAPKKK DLK-1.
After spinal cord injury, axons try to cross the injury site and reconnect with other cells but are stymied by scarring that forms after the injury.
In terms of early axon development these stages were equivalent to zebrafish stages 16 hours post fertilisation (hpf) to 24 hpf, Xenopus stages 22 to 32, chick stages HH11 to HH18, and mouse stages E8.
Thus, the exciting results in this study may facilitate development of an effective therapy for a number of neurological disorders, including SCI, that involve CNS axon damages.
Axon, a builder and joiner who also does music gigs, owns three properties.
We discovered that VEGF is able to attract nervous system axons.
appressa on the basis of axon distribution, immunoreactivity, and embryonic development.
When testing axons for neuro-physiological identification within a peripheral nerve, there are several kinds of large group I axons.
Filmed in the Cardiff area, Axon is a six-part scientific mystery series, produced by Illumina Digital, which combines linear drama with interactive documentary, scientific games and activities and streamed video drawn from the BBC archives.