2 years: Fissures between brain lobes are present {brain development, 2 years}. Children have 75% of adult brain. Cerebellum is 80% of adult weight. Vertical exogenous fibers connect cortex with subcortex. Subcortical association fibers, layer-one tangential fibers, and horizontal exogenous fibers develop. Cortex layer 3b is functional and has thalamus and association-area tracts. Association-area outer sections are functional. Cortex motor tracts modify sense pathways.
Biological Sciences>Zoology>Development>Stages>Toddler 24.0 Months
4-Zoology-Development-Stages-Toddler 24.0 Months
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Date Modified: 2022.0224