cornu Ammonis

Gradually, the fissure deepens and shifts toward the cornu ammonis.

The name cornu ammonis refers to the Egyptian deity Amun, who has the head of a ram.

These receptors are densely located in cornu ammonis pyramidal cells, which are known to release glutamate.

These glutamatergic fibers form a laminar pattern and terminate in the dentate gyrus and cornu ammonis 3 (CA3) region of the hippocampus.

The regions of the hippocampus in the brain are called the cornu ammonis - literally "Amun's Horns", due to the horned appearance of the dark and light bands of cellular layers.

Next come a series of Cornu Ammonis areas: first CA4 (which underlies the dentate gyrus), then CA3, then a very small zone called CA2, then CA1.

Hippocampal sclerosis (HS) is a neuropathological condition with severe neuronal cell loss and gliosis in the hippocampus, specifically in the CA-1(Cornu Ammonis area 1) and subiculum of the hippocampus.

The hippocampus as a whole has the shape of a curved tube, which has been analogized variously to a seahorse, a ram's horn ('Cornu Ammonis', hence the subdivisions CA1 through CA4), or a banana.

In addition, G9a/GLP inhibition in the entorhinal cortex altered histone H3 lysine 9 dimethylation in the Cornu Ammonis area 1 of the hippocampus, suggesting the importance of this complex in mediating connectivity between these two brain regions.

The spatial view cells that respond in the absence of visual cues are generally found in the Cornu Ammonis area 1, the parahippocampal gyrus, and the presubiculum, while the ones that do not respond are found in the Cornu Ammonis region 3.