Question

question 18
gyr and sulci are the __ and __ respectively, which characterize the surface of the human brain.
a cortex; forebrain
b fissures; folds
c folds; grooves
d grooves; folds
1 point

Explanation:

Gyri are the folds on the surface of the human brain, and sulci are the grooves.

Answer:

B. fissures; folds