The statement that the corpus callosum is largely myelinated by the age of 8 is true. The other options are incorrect. The corpus callosum begins to develop prenatally, processes a variety of sensory information, and connects the two hemispheres of the brain, not the brainstem to primitive regions.

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The Corpus Callosum

Question 19

Multiple Choice

The corpus callosum

A) does not begin to develop until the preschool years.
B) processes auditory information only.
C) connects the brainstem to the oldest and most primitive regions of the brain.
D) is largely myelinated by the age of 8.

Correct Answer: