The functions of ossicles (malleus, incus and stapes) in the mammalian ear is to ____________
A. Transmit vibrations B. regulate pressures C. support of the inner ear D. Maintain balance during motion E. secrete oil
Correct Answer: A
Explanation
The ossicles transmit vibrations (of the tympanic membrane) across the middle ear (to the oval window). The malleus (hammer) is in contact with the ear drum (tympanic membranc), and the stapes (stirrup) contacts the oval window. The three ossicles act cooperatively to amplify the vibrations of the tympanic membrane by 22 times.
