Asked by Walter Rutherford on Jun 16, 2024
Verified
Which membrane separates the cochlear duct from the scala tympani, and provides a surface on which the spiral organ rests?
A) Vestibular membrane
B) Tectorial membrane
C) Cochlear membrane
D) Basilar membrane
E) Tympanic membrane
Cochlear Duct
A spiral-shaped cavity in the inner ear, part of the auditory system, containing the organ of Corti that produces nerve impulses in response to sound vibrations.
Scala Tympani
A fluid-filled spiral passage in the inner ear, part of the cochlea, involved in converting sound vibrations into neural signals.
Basilar Membrane
A key structural element within the cochlea of the inner ear, it plays a critical role in the process of hearing by converting sound vibrations into neural signals.
- Identify the parts of the ear involved in the hearing process.
Verified Answer
MK
michael kalinowskiJun 19, 2024
Final Answer :
D
Explanation :
The basilar membrane separates the cochlear duct (or scala media) from the scala tympani and provides a surface on which the spiral organ (or organ of Corti) rests. The vestibular membrane is also known as the Reissner's membrane and separates the cochlear duct from the scala vestibuli. The tectorial membrane is a gel-like structure that covers the hair cells in the cochlea and is attached to the bony shelf above the basilar membrane. The cochlear membrane is not a recognized anatomical structure in the inner ear. The tympanic membrane, also known as the eardrum, separates the outer ear from the middle ear.
Learning Objectives
- Identify the parts of the ear involved in the hearing process.