When Is Myelination Completed?

Myelination occurs early for motor-sensory roots, special senses and the brainstem; those structures necessary for reflex behavior and survival. The corticospinal tract starts to myelinate at 36 weeks gestation and myelination is completed by the end of the 2nd year of life.

At what age is myelination complete?

Myelination (the coating or covering of axons with myelin) begins around birth and is most rapid in the first 2 years but continues perhaps as late as 30 years of age.

Does myelination continue throughout life?

Myelination is an important developmental process that begins during the fifth fetal month with myelination of the cranial nerves, and continues throughout life. The major changes in myelination occur from 3 weeks to 1 year for all brain regions.