noun
- A ridge or fold on the surface of the brain, especially the cerebral cortex.
Usage: anatomy; neuroscience; plural: gyri
Examples
- The precentral gyrus contains the primary motor cortex.
- Each gyrus is separated from adjacent ones by deep grooves called sulci.
- The superior temporal gyrus plays a role in auditory processing.
- Brain imaging revealed increased activity in the prefrontal gyrus during the task.
- The postcentral gyrus processes sensory information from the body.