tectorial
Adjective
Meaning
Of or pertaining to covering; -- applied to a membrane immediately over the organ of Corti in the internal ear.
Source: Webster's dictionaryExamples
The hair cells develop from the lateral and medial ridges of the cochlear duct, which together with the tectorial membrane make up the organ of Corti.
Hensen's stripe is the section of the tectorial membrane above the inner hair cell.