Which of the following structures is not a component of the external ear?Question 17Select one:a.Auricleb.Cerumen-secreting glandsc.Auditory (Eustachian) tubed.External auditory meatus
Question
Which of the following structures is not a component of the external ear?Question 17Select one:a.Auricleb.Cerumen-secreting glandsc.Auditory (Eustachian) tubed.External auditory meatus
Solution
The structure that is not a component of the external ear is c. Auditory (Eustachian) tube. The Eustachian tube is part of the middle ear, not the external ear. The external ear consists of the auricle (also known as the pinna), the external auditory meatus, and the cerumen-secreting glands. The Eustachian tube helps to equalize pressure in the middle ear. When you experience a 'pop' in your ear during a change in altitude, that's the Eustachian tube at work.
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