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Glenna goes to the concert given by her daughter's third-grade orchestra, even though she knows the students will play out of tune. As the instruments play, the sound waves travel into Glenna's auditory canals and strike tightly stretched membranes. The sensory process by which Glenna will hear the music begins with the vibration of the _______.
a. Eardrum
b. Cochlea
c. Ossicle
d. Basilar Membrane

Respuesta :

Answer:

A) Eardrum

Explanation:

The auditory system of the human comprises of the three parts of the ear: the outer part of the ear (auditory canal and Tympanic membrane), the middle ear (malleus, incus and the stapes (stirrup) and the inner ear (cochlea).

The sound waves enter the ear through the auditory canal in the pinna and hit the tympanic membrane called the eardrum. The vibration of the eardrum causes the transfer of the vibrations in the middle ear.

In the given question, the vibration of the eardrum is the first step of the process of hearing in Glenna.

Thus, Option-A is the correct answer.

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