The correct option is
A Cochlea
The correct option is A
Explanation of the correct option:
- Cochlea is the odd one out, it present in the inner ear, whereas other three bones are present in the middle ear.
- Cochlea is filled with filled with a fluid and has many hair cells inside it.
- plays a key role in the sense of hearing and participates in the process of auditory transduction.
Explanation of the incorrect options:
Option B:
- Hammer is a part of the ear ossicles and is also called Malleus.
- Hammer transmits vibrations caused by sound waves from the eardrum membrane to Incus.
Option C:
- Anvil is a part of the ear ossicles and is also called Incus.
- Incus transmits vibrations from Malleus to Stapes.
Option D:
- Stirrup is a part of the ear ossicles and is also called Stapes.
- Stapes transmits vibrations from Stapes to the fluid of the inner ear.
Final answer: Cochlea is the odd one out.