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Differentiate between Medullated and non-medullated nerve fibre.
Medullated nerve fibre | Non-medullated nerve fibre |
| Nerve fibres are protected by a sheath known as the , which is protected by . | A , , surrounds each nerve fibre. |
| Ranvier nodes are | Ranvier nodes are |
They have quite a appearance | They look to be in colour. |
They transmit nerve impulses far more than non-medullated nerve fibres. | They transmit nerve impulses at a considerably speed than medullated nerve fibre. |
| They can be found in the, the spinal cord, and the cranial and spinal nerves. | They are found in the , as well as the autonomic nerves. |
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