Tectorial restraint system is a type of ciliary restraint system for hair cells in the inner ear. In tectorial restraint systems, the tectorial membrane restrains the cilia of the hair cells by attaching either directly to ciliary tufts or indirectly through various kinds of fibrous structure (simple fibers, fibrous strands, finger-like processes, tectorial plates) [Phylogenetic Relationships of the Lizard Families: Essays Commemorating Charles L. Camp. 1988. Eds. R Estes, GK Pregill. Stanford University Press]. [ PHENOSCAPE ]