A gyrus is a ridge on the cerebral cortex

Cerebral cortex

The cerebral cortex is a sheet of neural tissue that is outermost to the cerebrum of the mammalian brain. It plays a key role in memory, attention, perceptual awareness, thought, language, and consciousness. It is constituted of up to six horizontal layers, each of which has a different...

. It is generally surrounded by one or more sulci

Sulcus (neuroanatomy)

In neuroanatomy, a sulcus is a depression or fissure in the surface of the brain.It surrounds the gyri, creating the characteristic appearance of the brain in humans and other large mammals....

 (sl. sulcus).

Notable gyri

• Superior frontal gyrus
  Superior frontal gyrus
  The superior frontal gyrus makes up about one-third of the frontal lobe of the human brain. It is bounded laterally by the superior frontal sulcus....
  
  , lat. gyrus frontalis superior
• Middle frontal gyrus
  Middle frontal gyrus
  The middle frontal gyrus makes up about one-third of the frontal lobe of the human brain....
  
  , lat. gyrus frontalis medius
• Inferior frontal gyrus
  Inferior frontal gyrus
  The inferior frontal gyrus is a gyrus of the frontal lobe . It is labelled gyrus frontalis inferior, its Latin name...
  
  , lat. gyrus frontalis inferior with 3 parts: pars opercularis, pars triangularis, and pars orbitalis
• Superior temporal gyrus
  Superior temporal gyrus
  The superior temporal gyrus is one of three gyri in the temporal lobe of the human brain, which is located laterally to the head, situated somewhat above the external ear.The superior temporal gyrus is bounded by:* the lateral sulcus above;...
  
  , lat. gyrus temporalis superior

Middle temporal gyrus, lat. gyrus temporalis medius

Inferior temporal gyrus, lat. gyrus temporalis inferior

• Fusiform gyrus
  Fusiform gyrus
  The fusiform gyrus is part of the temporal lobe in Brodmann Area 37. It is also known as the occipitotemporal gyrus. Other sources have the fusiform gyrus above the occipitotemporal gyrus and underneath the parahippocampal gyrus....
  
  , lat. gyrus occipitotemporalis medius
• Parahippocampal gyrus
  Parahippocampal gyrus
  The parahippocampal gyrus is a grey matter cortical region of the brain that surrounds the hippocampus. This region plays an important role in memory encoding and retrieval....
  
  , lat. gyrus parahippocampalis
• Transverse temporal gyrus
  Transverse temporal gyrus
  The transverse temporal gyri are found in the area of primary auditory cortex in the superior temporal gyrus of the human brain, occupying Brodmann areas 41 and 42. It is the first cortical structure to process incoming auditory information...
  
  

Precentral gyrus, lat. gyrus praecentralis

• Postcentral gyrus
  Postcentral gyrus
  The lateral postcentral gyrus is a prominent structure in the parietal lobe of the human brain and an important landmark. It is the location of primary somatosensory cortex, the main sensory receptive area for the sense of touch...
  
  , lat. gyrus postcentralis

Supramarginal gyrus, lat. gyrus supramarginalis

• Angular gyrus
  Angular gyrus
  The angular gyrus is a region of the brain in the parietal lobe, that lies near the superior edge of the temporal lobe, and immediately posterior to the supramarginal gyrus; it is involved in a number of processes related to language, mathematics and cognition...
  
  , lat. gyrus angularis
• Cingulate gyrus lat. gyrus cinguli
• Fornicate gyrus

Cuneus

Lingula lat. gyrus lingualis

External links

• Visual explanation of gyri, sulci, and fissures