Which of the following membranes acts as a rigid roof over the cilia of the hair cells of the spiral organ, causing the cilia to bend against it when sound waves are present?

A) Basilar membrane
B) Tympanic membrane
C) Cochlear membrane
D) Vestibular membrane
E) Tectorial membrane

Tectorial Membrane

A structure in the cochlea of the inner ear that contacts the cilia of the auditory hair cells, playing a critical role in the mechanism of hearing.

Spiral Organ

A structure located in the cochlea of the inner ear, critical for converting sound vibrations into electrical signals.

Cilia

Microscopic, hair-like structures on the surface of cells that move in a wave-like pattern to transport materials or aid in movement.