Which statement is correct for the ossicular system of the ear?
A) It serves to keep the pressure on the two sides of the tympanic membrane equal.
B) It increases the pressure of vibration as it transfers the sound wave from air in the outer ear to fluid in the inner ear.
C) It assists in determining whether a sound comes from the front or rear.
D) It is part of the vestibular apparatus.

Question

Quizplus · Accepted Answer

The ossicular system consists of three tiny bones in the middle ear, namely the malleus, incus, and stapes. These bones work together to increase the pressure of the sound wave as it travels from the air-filled middle ear to the fluid-filled inner ear. This helps to amplify the sound and ensure that it can be detected by the hair cells in the cochlea. Option A is incorrect because the Eustachian tube serves to keep pressure on either side of the tympanic membrane equal. Option C is incorrect because the brain processes the difference in sound intensity and timing between the two ears to determine sound localization. Option D is incorrect because the ossicular system is not part of the vestibular apparatus, which is responsible for detecting changes in head position and motion.

Which Statement Is Correct for the Ossicular System of the Ear