Which structure delivers sound waves to the tympanic membrane?
A) None of the listed responses is correct.
B) pinna
C) auditory tube
D) external acoustic meatus
D
Explanation:
A) One of the listed responses is correct.
B) The pinna funnels sound waves to the external acoustic meatus.
C) The auditory tube equalizes pressure between the external air and the cavity of the middle ear.
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