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Hippocampus anatomy describes the physical aspects and properties of the hippocampus, a neural structure in the medial temporal lobe of the brain. It has a distinctive, curved shape that has been likened to the sea-horse monster of Greek mythology and the ram's horns of Amun in Egyptian mythology .
The hippocampal subfields are four subfields CA1, CA2, CA3, and CA4 that make up the structure of the hippocampus. Regions described in the hippocampus are the head, body, and tail, and other hippocampal subfields include the dentate gyrus , the presubiculum , and the subiculum .
The term hippocampus minor fell from use in anatomy textbooks and was officially removed in the Nomina Anatomica of 1895. [13] Today, the structure is just called the hippocampus, [10] with the term cornu Ammonis (that is, 'Ammon's horn') surviving in the names of the hippocampal subfields CA1–CA4. [14] [15] [16]
Hippocampus and associated structures; Fornix and septal nuclei; Subcortical areas: Septal nuclei; Amygdala; Nucleus accumbens; Diencephalic structures: Hypothalamus; Mammillary bodies; Anterior nuclei of thalamus; Other areas that have been included in the limbic system include the: Stria medullaris; Central gray and dorsal and ventral nuclei ...
The hippocampus. The hippocampus is a structure in the brain that has been associated with various memory functions. It is part of the limbic system, and lies next to the medial temporal lobe. It is made up of two structures, the Ammon's Horn, and the Dentate gyrus, each containing different types of cells. [1]
The dentate gyrus (DG) is part of the hippocampal formation in the temporal lobe of the brain, which also includes the hippocampus and the subiculum.The dentate gyrus is part of the hippocampal trisynaptic circuit and is thought to contribute to the formation of new episodic memories, [1] [2] the spontaneous exploration of novel environments [2] and other functions. [3]
The hippocampal formation is a compound structure in the medial temporal lobe of the brain. It forms a c-shaped bulge on the floor of the temporal horn of the lateral ...
The hippocampal formation, which consists of the hippocampus, perirhinal cortex, the dentate gyrus, the subicular areas and the EC forms one of the most important parts of the limbic system. The entorhinal cortex is an infolding of the parahippocampal gyrus into the inferior (temporal) horn of the lateral ventricle .