Sylvian
Sylvian
Sylvian (pronunciation: /ˈsɪlviən/), also known as the Sylvian fissure or lateral sulcus, is a term used in neuroanatomy to describe a prominent structure in the brain.
Etymology
The term "Sylvian" is derived from the name of the French physician and anatomist, Franciscus Sylvius, who first described this structure in the 17th century.
Definition
The Sylvian fissure, or lateral sulcus, is a deep groove in the surface of the brain separating the frontal lobe and parietal lobe above from the temporal lobe below. It is one of the most easily identifiable features in the brain, and it marks the divide between the cerebral hemispheres' lateral and medial surfaces.
Related Terms
- Frontal lobe: The largest of the four major lobes of the brain in mammals, and it is located at the front of each hemisphere.
- Parietal lobe: One of the four major lobes of the brain, positioned above (superior to) the occipital lobe and behind (posterior to) the frontal lobe and central sulcus.
- Temporal lobe: One of the four major lobes of the human brain, it is located beneath the lateral fissure on both cerebral hemispheres of the mammalian brain.
- Cerebral hemisphere: One of the two regions of the brain that are delineated by the body's median plane, the other being its mirror image.
- Neuroanatomy: The study of the structure and organization of the nervous system.
External links
- Medical encyclopedia article on Sylvian
- Wikipedia's article - Sylvian
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