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Medical Definition of Entorhinal area
1. Brodmann's area 28, a cytoarchitecturally well-defined area of multilaminate cerebral cortex on the medial aspect of the parahippocampal gyrus, immediately caudal to the olfactory cortex of the uncus; the area is the origin of the major fibre system afferent to the hippocampus, the so-called perforant pathway. (05 Mar 2000)