Which term refers to the grooves on the brain surface?

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Multiple Choice

Which term refers to the grooves on the brain surface?

Explanation:
Grooves on the brain surface are called sulci. The brain’s outer layer, the cerebral cortex, is folded into raised ridges (gyri) and valleys (sulci), and this folding increases the surface area for neural processing. Fissures are the deeper grooves, such as the longitudinal fissure that threads between the two hemispheres. The cortex refers to the entire outer gray matter layer, not the grooves themselves.

Grooves on the brain surface are called sulci. The brain’s outer layer, the cerebral cortex, is folded into raised ridges (gyri) and valleys (sulci), and this folding increases the surface area for neural processing. Fissures are the deeper grooves, such as the longitudinal fissure that threads between the two hemispheres. The cortex refers to the entire outer gray matter layer, not the grooves themselves.

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