a groove is called a sulcus, but a deep groove is called a fissure.
The deep grooves are called sulci(sing. sulcus) while raised portions are called gyri(which are bulged portions between two adjacent sulci). The number of gyri determines the intelligence of a person, as more the convolutions, more will be the surface area of the cortex.
False. The deep grooves within the cerebral hemispheres are known as sulci, while the raised folds are called gyri.
The deep bumps in the brain are called gyri (singular: gyrus). These are the raised folds on the surface of the cerebral cortex, which increase its surface area and allow for more neurons to be packed into the brain. The grooves between these bumps are known as sulci. Together, gyri and sulci contribute to the brain's complex structure and functionality.
The brain is covered in ridges (gyri) ans grooves (sulci).
Parts of the Brain: Cerebrum-largest part of brain, 7/8 total mass of the brain. * 2 cerebral hemispheres: # ridges- gyri # grooves- sulci *Gyrus(gyri)-is a ridge on the cerebral cortex. Folds on the brain material. Many ridgescalled convolutions, or gyri, or gyrus, separated by grooves, mark the cerebrum's surface. *Sulcus(sulci)-shallow grooves on the brain. Generally, a shallow to somewhat deep groove is called a sulcus, or sulci, and a very deep groove is called a fissure.
The ridges and grooves on the brain are found on the cerebral cortex, which is the outermost layer of the brain. These ridges and grooves are known as gyri (ridges) and sulci (grooves), and they increase the surface area of the brain, allowing for more neural connections and processing power.
sulcus
It is a drill bit having deep helical grooves, that is spiral grooves
open ambulacral grooves
Vertical grooves are called "striations."
Electrical stimulation of the brain. DBS.
It is a drill bit having deep helical grooves, that is spiral grooves