cochlea morphology trait basilar membrane morphology trait basilar lamina morphology trait membrana basilaris morphology trait VT:0004308 Trait.ontology lamina basilaris ductus cochlearis morphology trait morphology trait of the basilar membrane of cochlear duct Any measurable or observable characteristic related to the shape, structure, color or pattern of the membrane extending from the bony spiral membrane to the basilar crest of the cochlea; it forms the greater part of the floor of the cochlear duct separating the latter from the scala tympani, and it supports the organ of Corti. lamina basilaris cochleae morphology trait