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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 |