NURSING EXAM QUESTIONS
MEDICAL SURGICAL NURSING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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connects internal ear to external ear
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it equalises pressure between middle ear and outer atmosphere
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connects middle ear to pharynx
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Both (b) and (c)
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Detailed explanation-1: -So, the correct answer is ‘it equalizes pressure on both sides of the eardrum’.
Detailed explanation-2: -The primary function of the Eustachian tube is to equalize air pressure between the atmosphere and the middle ear. Yawning and swallowing cause contraction of the muscles connected to the Eustachian tube, enabling the tube to open to small amounts of air.
Detailed explanation-3: -It equalises air pressure in the middle ear to outside. It also drains the mucus of the middle ear.
Detailed explanation-4: -Eustachian (pronounced “you-stay-shee-un”) tubes run from the middle ears to the back of your nose and throat. They’re located on each side of your face.
Detailed explanation-5: -Under normal circumstances, the human Eustachian tube is closed, but it can open to let a small amount of air through to prevent damage by equalizing pressure between the middle ear and the atmosphere.