The longest axon of a human motoneuron can be over a meter long, reaching from the base of the spine to the toes.

This information is conveyed via specialized nerve cell extensions (long axons), which form the bulk of the brain, cerebellum, and spinal cord white matter.

Cell body: here it may be used for cells like neurons which have long axons (nerve fibres).

In nerve cells, the mitochondria travel down the long axons.

The cell body of the efferent neuron is connected to a single, long axon and several shorter dendrites projecting out of the cell body itself.

Peripheral sensory fibers contain long dendrites, but peripheral motor fibers have long axons.

This all-or-nothing characteristic allows action potentials to be transmitted from one end of a long axon to the other without any reduction in size.

There is more white matter (longer axons) on right and more grey matter (cell bodies) on the left.

Golgi I nerve cells (with long axons)

The exact mechanism of how mutations in MFN2 selectively cause the degeneration of long peripheral axons is not known.