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Rhinal cortex

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The rhinal cortex is the cortex surrounding the rhinal fissure, including the entorhinal cortex and the perirhinal cortex. It is a cortical region in the medial temporal lobe that is made up of Brodmann areas 28, 34, 35 and 36.

Input from all sensory cortexes flows to the parahippocampal and perirhinal cortexes, from where it continues to the entorhinal cortex, and proceeds to the hippocampus. Feedback from the hippocampus then returns the same way back to the sensory cortexes.

Circuit diagram with the connections of the rhinal cortex


The rhinal cortex is proposed to be part of the neural circuit for explicit memory.[1]

See also

http://thebrain.mcgill.ca/flash/i/i_07/i_07_cr/i_07_cr_tra/i_07_cr_tra_2b.jpg for a picture of the rhinal cortex and its location.

References

  1. ^ Kolb & Whishaw: Fundamentals of Human Neuropsychology (2003), page 455.