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Axon

Axon

(Science: cell biology) a long process of a neuron, that carries efferent (outgoing) action potentials from the cell body towards target cells.

Each nerve cell has one axon, which can be over a foot long. A nerve cell communicates with another nerve cell by transmitting signals from the branches at the end of its axon. At the terminal end of the axon, the impulses are transmitted to other nerve cells or to effector organs.

in the peripheral nervous system, the larger (myelinated) axons are surrounded by a myelin sheath formed by concentric layers of plasma membrane of the schwann cell.

in the central nervous system, the function of the schwann cell is supplied by oligodendrocytes (oligodendroglia).

See: dendrite. Long nerve Fiber that conducts away from the cell body of the neuron.Part of the nerve cell that conducts electrical impulses.


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Does other animals have faster nerve speeds?

The speed of nerve transmission depends on the size of the nerve axon, the length of it and whether it is effectively insulated by myelin. There are a vast number of different kinds of neurons in each animal, and for some there are more of the nice big, ...

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by Babybel56
Fri Feb 28, 2014 8:55 am
 
Forum: General Discussion
Topic: Does other animals have faster nerve speeds?
Replies: 1
Views: 1292

Why do neurones only have one axon?

... can spread to multiple other neurones at a synapse and transmit signals very fast. I think what you actually want to know is would having multiple axons on a neurone speed up transmission of a nerve impulse and the answer to this i do not believe to be yes because neurones are insulated ( some ...

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by Drredfrizzle
Sun Nov 11, 2012 7:46 pm
 
Forum: Human Biology
Topic: Why do neurones only have one axon?
Replies: 1
Views: 2485

When do grid cells fire?

... on grid cells, and I was a little confused on their function. First, how are grid cells structured (many or few dendrite, long or short dendrite/axon, etc..)? Also, it wasn't clear if,say, someone with no motor input would trigger these cells. For instance, if you were in a motorized wheel chair ...

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by erickulcyk
Thu Oct 11, 2012 7:06 pm
 
Forum: General Discussion
Topic: When do grid cells fire?
Replies: 0
Views: 871

Why do neurones only have one axon?

I have just learnt about neurones. I wonder why neurones have only one axon. Can they transmit nerve impulses faster and more rapidly when they have more axons? Does having more axons help in coordination? Could anyone tell me why neurons have only one axons? ...

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by startanewww
Thu Sep 27, 2012 11:39 am
 
Forum: Human Biology
Topic: Why do neurones only have one axon?
Replies: 1
Views: 2485

Intracellular membrane potential of cell and axon

... resting membrane changes to a neuron in low Na+ ECF solution, I see that the membrane potential in the intracellular cell body and intracellular axon is the same voltage/value. Even in other simulations like where the ECF is high in K+, the voltage reading is the same between the intracellular ...

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by ayong1970
Fri Sep 07, 2012 6:43 pm
 
Forum: Physiology
Topic: Intracellular membrane potential of cell and axon
Replies: 1
Views: 5981
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