How Do You Spell AMMONS HORN?

Pronunciation: [ˈamənz hˈɔːn] (IPA)

The correct spelling of the brain structure commonly known as "Ammons Horn" is actually "hippocampus." This is because the Ammons Horn refers specifically to one part of the hippocampus. The pronunciation of "hippocampus" is /hɪˈpɒkəmpəs/ with the stress on the second syllable. The IPA phonetic transcription shows that the "hippo" part is pronounced with a short "i" sound followed by a "p" sound, and the "campus" part is pronounced with a short "a" sound and a "pəs" sound.

AMMONS HORN Meaning and Definition

1. Ammons Horn refers to the major part of the hippocampal formation, a region located within the medial temporal lobe of the brain. Named after the renowned Swiss anatomist Friedrich Ammon, the Ammons Horn is composed of two distinct structures: the cornu ammonis (CA) regions and the dentate gyrus.

   The CA regions are further subdivided into four subfields: CA1, CA2, CA3, and CA4. CA1 is the largest and most anatomically defined region, responsible for the consolidation of memory and spatial navigation. CA2 receives input from the hippocampus and plays a vital role in regulating social memory and anxiety responses. CA3 is involved in pattern separation, a process that helps distinguish between similar experiences. CA4, on the other hand, plays a limited role and is less defined compared to the other subfields.

   Adjacent to the CA regions lies the dentate gyrus, forming the curved shape that resembles a horn. Its primary function primarily involves pattern separation, processing incoming information and categorizing it into distinct memory representations. Additionally, the dentate gyrus acts as a gatekeeper, controlling the flow of information from the entorhinal cortex to the hippocampus.

   Overall, the Ammons Horn, including the CA regions and the dentate gyrus, is a fundamental component of the brain's limbic system and plays a critical role in memory formation, spatial navigation, and emotion regulation. Dysfunction or damage to this region can lead to memory impairments, specifically in the encoding and retrieval of new information.

Common Misspellings for AMMONS HORN

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Etymology of AMMONS HORN

The word Ammon's Horn comes from the Latin term cornu Ammonis, which translates to horn of Ammon. The name Ammon is derived from the ancient Egyptian god Amun or Ammon, who was often depicted with ram's horns. The hippocampus, a part of the brain resembling the shape of a seahorse, was thought to resemble a ram's horn by the anatomist who named it in the 16th century. Hence, it was referred to as the horn of Ammon due to its shape. Over time, cornu Ammonis eventually evolved into Ammon's Horn.