It is easy to confuse the terms sulcus and gyrus (on the cerebral cortex). The difference between these two terms is that
A) a sulcus corresponds to a folia on the cerebellum, whereas a gyrus corresponds to a fissure.
B) a sulcus is the same as a fissure on the cerebral cortex, whereas a gyrus is a lobe.
C) a sulcus is a groove, and a gyrus is a deeper groove.
D) a gyrus is a ridge, and a sulcus is a groove.

Question

Quizplus · Accepted Answer

A sulcus is a groove or furrow on the cerebral cortex, while a gyrus is a ridge or bump on the cerebral cortex. Therefore, D (a gyrus is a ridge, and a sulcus is a groove) is the best choice.

It Is Easy to Confuse the Terms Sulcus and Gyrus