A shallow groove on the surface of the brain is called a

A) fissure.
B) canal.
C) gyrus.
D) aperture.
E) sulcus.

Sulcus

A term specifically referring to the indentations or narrow grooves on the surface of an organ or tissue, including the brain.

Gyrus

A ridge or fold between two clefts on the cerebral surface in the brain, associated with increased surface area for neural processing.