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Created page with "== Introduction == The rhinencephalon (from the Greek "rhin," meaning "nose," and "encephalon," meaning "brain") is a part of the brain that is primarily involved in the sense of smell. It is also known as the "olfactory brain" and is considered one of the oldest parts of the brain in terms of evolutionary development. The rhinencephalon includes several structures, such as the olfactory bulb, olfactory tract, olfactory cortex, and associated structures like the amy..."