Pes hippocampi [Ammon's horn]
Pes hippocampi [Cornu ammonis]
- Latin eponym: Ammon's horn
Definition
The Ammon’s horn is a part of the archicortex located in the rhinencephalon, forming a gyrus. It is composed of three main layers (molecular, double pyramidal, and polymorphic) and divided into zones extending from the subiculum to the dentate gyrus.
It is a cylindroidal structure named for its resemblance to the two horns of a ram (the ancient Egyptian god Ammon was depicted with a ram’s head).
References
Barone R, Bortolami R. Anatomie comparée des mammifères domestiques, Tome 6, Neurologie I, Vigot, Paris, 2004.
Evans HE, de Lahunta A. Miller’s anatomy of the dog, 4th edition, Elsevier Saunders, St Louis, 2012.
