4/1/2024 0 Comments Hippocampus anatomy radiology![]() The parahippocampal gyrus is involved in memory storage and recall. The subiculum connects with the parahippocampal gyrus, a region of the cerebral cortex that surrounds the hippocampus. A neuroradiologist blinded to clinical history graded initial and follow-up hippocampal signal intensity on a scale from 0 (normal) to 4 (markedly increased). Ammon's horn is continuous with the subiculum, which acts as the main output source of the hippocampal formation. MRI that included coronal temporal lobe imaging within 72 hours of febrile status epilepticus and follow-up imaging from 3 to 23 months later (mean, 9 months). It is divided into three fields (CA1, CA2, and CA3) that process, send, and receive input from other brain regions. Ammon's horn is another name for the hippocampus major or hippocampus proper. Neurogenesis (new neuron formation) in the adult brain occurs in the dentate gyrus, which receives input from other brain areas and aids in new memory formation, learning, and spacial memory. The dentate gyrus is folded and nestled within the hippocampal sulcus (brain indentation). The two gyri, the dentate gyrus and Ammon's horn (cornu ammonis), form interlocking connections with one another. The hippocampus is the main structure of the hippocampal formation, which is composed of two gyri (brain folds) and the subiculum.
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