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that portion of the cerebral cortex that, with the archeocortex, develops in association with the olfactory system, and which is phylogenetically older and less stratified than the neocortex. It is composed chiefly of the piriform cortex and the parahippocampal gyrus.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
The phylogenetically oldest part of the cortical mantle of the cerebral hemisphere, represented by the olfactory cortex.
Farlex Partner Medical Dictionary © Farlex 2012
mesocortexA region of the brain between the isocortex and allocortex, which contains the 1st, 5th and 6th layers and merged 2nd, 3rd and 4th layers.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
The oldest part phylogenetically of the cortical mantle of the cerebral hemisphere, represented by the olfactory cortex.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012