Question

The bone that is in contact with fenestra ovalis is
A. Malleus
B. Incus
C. Stapes
D. Auditory

Answer 1

Hint:The fenestra ovalis or the oval window makes a membranous oval opening towards the cochlea of the inner ear. The fenestra ovalis is present in the middle ear. After the tympanic membrane, the sound waves amplify by 10 times when they reach the oval window. It makes a direct intersection between the middle and the inner ear.

Complete answer:The middle ear is the central portion of the human auditory system. The middle ear can be defined as the portion in between the eardrum and the oval window or fenestra ovalis. The middle ear consists of the hollow space called the tympanic cavity. This is surrounded by the tympanic part of the temporal bone. The sound wave from the tympanic cavity travels the ossicles. The ossicle is a collection of three individual bones. These are the three smallest bones of the human body. The three bones of the ossicle are malleus, incus, and stapes. These bones transfer the vibrations of the eardrum in waveforms through fluids and membranes of the inner ear.
The fenestra ovalis stays in direct contact with the stapes. The stapes is also called the stirrup characteristic to its shape. It is connected to the oval window through the annular ligament. Also, it is the smallest of the three bones of the ossicle and the lightest bone of the human body. The fenestra ovalis is a membranous opening that connects the middle ear to the cochlea of the inner ear.
Therefore, we can conclude that the right answer is option C. Stapes

Note: Otosclerosis is a disease of stapes. It is characterized by abnormal bone remodeling. It can lead to conductive hearing loss. It is more evident in young age groups and females. The treatment is stapedectomy. This refers to the surgical removal or stapes and replacement by the artificial prosthesis.