The hippocampus is the part of the brain that is involved in memory forming, organizing, and storing. It is a limbic system structure that is particularly important in forming new memories and connecting emotions and senses, such as smell and sound, to memories. The hippocampus is a horseshoe shaped paired structure, with one hippocampus located in the left brain hemisphere and the other in the right hemisphere. The hippocampus acts as a memory indexer by sending memories out to the appropriate part of the cerebral hemisphere for long-term storage and retrieving them when necessary. (from biology.about.com link
Image Source: post-mitotic tumblr (link). credit: Thomas Deerinck
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from Greek hippos, meaning “horse” and kampos, meaning “sea monster”, compliments of Venetian anatomist Julius Aranzi and his penchant for seeing the forms of sea creatures in brain ultrastructure.