Which part of the ear transmits vibrations from incus to cochlea via oval window?A) Tympanic membraneB) PinnaC) StapesD) MalleusE) Incus

To determine which part of the ear transmits vibrations from the incus to the cochlea via the oval window, let's analyze the options provided:

1. Tympanic membrane: This is the eardrum that vibrates in response to sound but does not directly transmit vibrations to the cochlea.
2. Pinna: This is the outer part of the ear that collects sound waves; it does not play a role in transmitting vibrations to the cochlea.
3. Stapes: This is the smallest bone in the body and connects the incus to the oval window of the cochlea, facilitating the transmission of sound vibrations.
4. Malleus: This is the first of the three ossicles but connects to the tympanic membrane rather than directly transmitting vibrations to the cochlea.
5. Incus: While this bone does transmit vibrations, it is not the last bone that connects to the oval window.

Final Answer

The correct answer is C) Stapes.