Hippocampus

The horn of Ammon (obsolete; cornu ammonis; named after the ancient Egyptian god Ammon, depicted with a ram's head) is one of the structures of the mammalian brain. The horn of Ammon is a curved part of the hippocampus located in the temporal lobe of the cerebral hemispheres.

The name "horn of Ammon" comes from the similarity of the shape of this brain structure to the ram's horns that were used to depict the ancient Egyptian god Ammon. Ammon's horn plays an important role in the processes of memory formation and spatial orientation. Damage to the horn of Ammon can lead to memory and learning impairments.

Ammon's horn or cornum (lat. Cornu Ammonis, abbreviated as Cummins) are the horns of a goat or ram, used in the practice of testing cognitive processes in IQ testing and as a marker of excitability of the central nervous system [1] [2]. As an attribute of offering gifts to the god Ammon (Baal), the horns of a goat are the first and most important benefit brought to him from among the great (ex. 29: 35-42). The horn ligament was used during the initiation rites for boys in honor of Cybele (in Roman cult associated with the meaning of Artemis the huntress "horn"), known by the same name. In addition, it was a symbol of the city of Cornwall. It was discovered by chance by the Greek poet Aristophanes with the priest Erasthorn in his hometown of Soly. The no less famous sophist Paul Amiot rediscovered[3