Damage to the hammer, anvil, and stirrup is most likely to cause hearing loss.

Conductive hearing loss.

Explanation:

The hammer, anvil and stirrup are three ossicles, or small bones, which are located between the eardrum and the inner ear, and are responsible for transmiting the soundwave vibrations received by the eardrum to the fluids and nerves of the inner ear. This setup is responsible for our hearing. Damage to any part of this system is very likely to cause conductive hearing loss. When it comes to the ossicles, there are a number of ailments that can affect these little bones, such as otosclerosis, which causes the hammer, anvil and stirrup to lose part or all of their natural movement. Another one is cholesteatoma, which is an unnatural growth of tissue inside the middle ear that can end up damaging the ossicles.

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