The cortex is wrinkled in order to

• A. slow down processing speed of the brain.
• B. allow a high number of cells to fit into a limited space.
• C. allow the hemispheres to communicate.
• D. increase processing speed of the brain.

Answer: (B)

Verified step by step guidance

1. Understand the structure of the brain: The cortex is the outermost layer of the brain, known for its wrinkled appearance.
2. Recognize the purpose of the wrinkles: The wrinkles, or gyri and sulci, increase the surface area of the cortex.
3. Consider the implications of increased surface area: More surface area allows for a greater number of neurons to be packed into the cortex.
4. Relate the structure to function: A higher number of neurons can enhance the brain's ability to process information and perform complex tasks.
5. Evaluate the options: The wrinkles in the cortex are primarily to allow a high number of cells to fit into a limited space, which supports efficient brain function.