Flashcards in Special Senses Deck (2)
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1
Q
what is tympanic reflex
A
when the middle ear muscles ( tensor tympani and stapedius) contract, they pull the manubrium of the malleus inward and the footplate of the stapes outward. louder sounds make this reflex contract those muscles.
2
Q
what is the function of the eustachian tube
A
to ventilate the middle ear space, ensuring that is pressure remains at near normal environmental air pressure
- it also drains accumulated secretions, infections or debris from the middle ear