Thanks Anita and Maryann,
The issue with the wiki pages came up in discussion with Chris about updates of SAO Ids with GO Ids in the wiki. While there were a few signals that the page at:
http://neurolex.org/wiki/GO_0005575 was not a typical ontology term page it's also not entirely obvious why this page exists. It sounds like resolving the page Redirects will fix this issue.
Another question, the link for the term name and ID displayed on the page at:
http://neurolex.org/wiki/GO_0005575 points back to BioPortal using the old GO Id format and therefore does not resolve. Is the URI displayed on the wiki pulled from Ontoquest or is there wiki code that generates these links? I don't see the old formatted version of the GO URIs in the latest version of NIFSTD, however the production Ontoquest is a few versions behind the latest ontology release.