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Medical Definition of Pharyngobasilar fascia
1. The fibrous coat of the pharyngeal wall situated between the mucous and muscular coats; it is attached above to the basilar part of the occipital bone, and the petrous part of the temporal bone. This layer and the mucosa which lines it forms the wall of the non-muscular pharynx (pharyngeal vault) above the superior pharyngesl constrictor muscle. Synonym: fascia pharyngobasilaris, aponeurosis pharyngea, tela submucosa pharyngis. (05 Mar 2000)