spiral organ n.
A specialized structure located on the inner surface of the basilar membrane of the cochlea containing hair cells that transmit sound vibrations to the nerve fibers. Also called organ of Corti.
noun 1. a form of spring consisting of a wire coiled in a helix.
- Spiral staircase
noun 1. a staircase constructed around a central axis
- Spiral valve
spiral valve n. See spiral fold of cystic duct.
- Spiral vein of modiolus
spiral vein of modiolus n. A vein in the modiolus of the cochlea that is a tributary to the labyrinthine vein and the vein of the cochlear canal.