Although the cortex makes up 80% of the volume of the human brain, it is only 2 to 3 millimeters thick. This is possible because of its numerous __________.
A) separate layers
B) spirals
C) distinct pockets, or "compartmentalization"
D) convolutions and fissures

Question

Quizplus · Accepted Answer

The cortex's numerous convolutions and fissures allow it to have a large surface area while being only 2 to 3 millimeters thick, enabling it to fit within the skull and perform complex functions.

Although the Cortex Makes Up 80% of the Volume of the Human