Fred is studying his notes from anatomy class. One list in his notes describes features of a CNS structure. anterior horns and posterior hornsgray matter inside, white matter outsidehippocampuscentral canalFred thinks this list contains an error. Which best describes the error?

Anterior and posterior horns, gray matter surrounded by white matter, and the central canal are features of the spinal cord. The hippocampus is a structure in the brain, so it is the item that does not belong with the others. Therefore, most items describe the spinal cord, but the hippocampus is in the brain.

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