Question

what are the structures in the cerebrum that are elevated ridges, which increase surface area to increase the number of neurons in a specific area?

Answer 1

The purpose of the brain's gyri and sulci, or ridges and grooves, is to increase surface area.

What is the name for the raised ridges in the cerebrum?

The shallow grooves on the cerebral cortex's surface are referred to as sulci, while the higher tissue ridges are called gyri.

Signals are transferred between nerve cells in different regions of the brain and body through white nerve fibres that are below the skin. The neocortex, a six-layered structure present in animals, has a wrinkled surface that enhances its surface area.

The cerebellum has an odd surface appearance that hides the fact that the cerebellar cortex, a layer of grey matter, makes up the majority of the structure. This layer's ridges are collectively referred to as folium.

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