The spelling of the word 'myels' may seem unusual, but it is actually phonetically correct. The word is pronounced /maɪəlz/ and refers to bundles of nerve fibers found in the spinal cord. The first part of the word is pronounced 'my' as in 'myth' or 'myself', while the second syllable is pronounced 'els' as in 'elves'. Despite its irregular spelling, 'myels' accurately represents the pronunciation of this particular medical term.