"Wow!" says 4-year-old Tristan when he sees an actual human brain on display at the science museum,"I didn't realize how wrinkly it would be." Because he can only see the outer layer of the brain,Tristan is actually describing only the

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The cerebral cortex is the outer layer of the brain and is responsible for many of the brain's functions, including consciousness, memory, and language. Tristan's description of the brain being wrinkly is likely due to the folds and creases of the cerebral cortex. The other options (white matter, ventricles, cerebellum) are not visible in a display of just the outer layer of the brain.

"Wow!" Says 4-Year-Old Tristan When He Sees an Actual Human