If Stretched Out Flat, the Average 20-Year-Old Human Cerebral Cortex

Multiple Choice

If stretched out flat, the average 20-year-old human cerebral cortex would cover an area of about

A) 5 square yards and involve about 20,000 miles of white matter.
B) 2.5 square feet and involve about 100,000 miles of white matter.
C) 1.0 square feet and involve about 7,500 miles of white matter.
D) 7.5 square yards and involve about 250,000 miles of white matter.