The Senses

How is hearing carried out? (6p)
- Pinna collects vibrations
- Auditory canal carries vibrations to eardrum
- Eardrum carries vibrations to middle ear
- The ossicles amplify vibrations and pass them to oval window
- The cochlea converts the vibrations into electrical impulses that are sent to the brain by auditory nerve.
- The Eustachian tube equalises pressure between middle and outer ear.
What does the vibrations pass through to reach the cochlea where it’s converted to electrical pulses?
- Pina
- Auditory canal
- Eardrum to middle ear
- Ossicles then through oval window
- Reaches cochlea
In hearing what happens once the vibrations are converted to electrical impulses in the cochlea?

The impulses are sent to the brain by auditory nerve.
Name a hearing disorder.
- Glue ear (common in young children)
- A sticky substance builds up in the inner ear causing some deafness.
Among who is glue ear common in?

Young children
What does glue ear cause?

A sticky substance builds up in the inner ear causing some deafness
What is the corrective measure for glue ear?
- Given decongestants
- Or
- Small operation to place Grammys into the ears to keep them open
What are grammets?

Small tubes placed in ears to keep them open

Author

jacquelineglynn

363409

Card Set

The Senses

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Updated

2023-06-04T11:15:02Z

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