Wikipedia article of the day for July 22, 2025

The Wikipedia article of the day for July 22, 2025 is Hippocampus.
The hippocampus is a major component of the brain of humans and many other vertebrates. It plays important roles in the consolidation of information from short-term memory to long-term memory, and in spatial memory that enables navigation. In humans and other primates, the hippocampus is located in the archicortex, one of the three regions of allocortex, in each hemisphere. The hippocampus is a structure found in all vertebrates. In Alzheimer's disease (and other forms of dementia), the hippocampus is one of the first regions of the brain to suffer damage; short-term memory loss and disorientation are included among the early symptoms. Damage to the hippocampus can also result from oxygen starvation, encephalitis or medial temporal lobe epilepsy. Since different neuronal cell types are neatly organized into layers in the hippocampus, it has frequently been used as a model system for studying neurophysiology.