Question

Tina was born with a hearing deficiency. When Dr. Albert studied the physiology of her auditory system, he found that Tina’s eardrums were intact and were receiving auditory stimulus. However, the stimulus was not moving forward from the eardrums and was not reaching the inner ear. Which of the following conclusions is Dr. Albert most likely to have drawn from these findings?

Answer 1

Answer:

The hammer, anvil, and stirrup in Tina's ears were not performing their functions.            

Explanation:

Tina was born with a hearing deficiency.

The hammer, anvil and stirrup are collectively called as middle ear ossicles. Hammer is also known as malleus. Another name of anvil is incus and stirrup is stapes.

They are located at the middle ear between the cochlea and the eardrum.

When a sound hits the surface of the ear drum, it vibrates. It makes the middle ear ossicles to motions. One end of hammer is attached to the eardrum while the other end is connected to the anvil. The anvil is then connected with the stirrup.

All these three units sends the sound signal to the inner ear.

Thus Dr. Albert while treating Tina concluded that ---

The hammer, anvil, and stirrup in Tina's ears were not performing their functions.