part of part of has part has part has_part attached to attached to otic fibrocyte system cochlear duct of membranous labyrinth cochlear canal spiral ligament EMAPA:35798 UMLS:C0229477 FMA:77834 UBERON:0006725 Wikipedia:Spiral_ligament MA:0001192 MESH:D055493 SCTID:279840005 UBERON:0028186 BIRNLEX:2524 A spiral thickening of the fibrous lining of the cochlear wall. Spiral ligament secures the membranous cochlear duct to the bony spiral canal of the cochlea. Its spiral ligament fibrocytes function in conjunction with the stria vascularis to mediate cochlear ion homeostasis. spiral ligament of cochlear duct spiral ligament of cochlea nonskeletal ligament