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PTCE
Auditory System
Anatomy | Ear Component | Function |
---|---|---|
External Ear | Auditory canal | Links the external ear to the tympanic membrane |
External Ear | Tympanic membrane | Protects middle ear from foreign objects & transmits sound waves to the middle ear |
Middle Ear | Malleus (hammer) | Transmits sound waves |
Middle Ear | Incus (anvil) | Transmits sound waves |
Middle Ear | Stapes (stirrup) | Transmits sound waves |
Middle Ear | Eustachian tube | Connects middle ear to the nasopharynx; relieves the pressure between the outside & inside of the ear during swallowing & yawning |
Inner Ear | Labyrinth | Transmits audible sounds via nerve impulses |
Inner Ear | Cochlea | Transmits impulses l to the brain |
Inner Ear | Vestibule | Responsible for equilibrium & balance |
Inner Ear | Semicircular canal | Transfer of message via acoustic nerve |
External Ear | Auricle | Serves an entrance for sound into the ear |