Gyrus
Gyrus
Gyrus (pronounced: /ˈdʒaɪrəs/), plural gyri (pronounced: /ˈdʒaɪraɪ/), is a term used in neuroanatomy to describe the folds that characterize the surface of the brain. The term is derived from the Greek word "gyros" which means circle or spiral.
Etymology
The term "gyrus" comes from the Greek word "gyros", meaning a circle or a spiral. This term was chosen due to the circular or spiral shape of the folds on the brain's surface.
Function
The gyri are part of the cerebral cortex, the outermost layer of the brain. They increase the surface area of the brain, allowing for higher brain function such as thought and action. The gyri are separated by grooves called sulci.
Related Terms
- Sulcus: A groove or furrow on the brain's surface, separating the gyri.
- Cerebral cortex: The outermost layer of the brain, containing the gyri and sulci.
- Neuroanatomy: The study of the structure and organization of the nervous system.
See Also
External links
- Medical encyclopedia article on Gyrus
- Wikipedia's article - Gyrus
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