The nurse is reviewing the physiology of the ear with a patient with a hearing disorder. What should the nurse explain about the function of the inner ear?
Select all that apply.
1. It coordinates visual pathways.
2. It integrates efferent neuron messages.
3. It provides information about head position.
4. It maintains middle ear structure and function.
5. It conducts sound.
Correct Answer: 3, 5
The inner ear is a maze of bony chambers. The membranous labyrinth, a delicate network of interconnected fluid-filled tubes, lies within this maze. Perilymph, a fluid similar to cerebrospinal fluid, flows between the bony and the membranous labyrinth. Within the chambers of the membranous labyrinth is a fluid called endolymph. These fluids conduct sound vibrations. Receptors within the inner ear maintain equilibrium by responding to changes in head position in order to coordinate body movements and balance. The inner ear is not involved with visual pathways. It does not integrate efferent neuron messages or maintain middle ear structure and function.
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