Question

Cochlear implant given below, identify the marked structure:

• A. Internal magnet
• B. Electrode
• C. Receiver
• D. Antenna

Hint:

The electrode in a cochlear implant is the critical component that directly stimulates the auditory nerve, enabling sound perception.

Answer 1

The Correct Option is B

Explanation: A cochlear implant is a device used to provide a sense of sound to a person who is profoundly deaf or severely hard of hearing. It works by directly stimulating the auditory nerve. Key components of a cochlear implant include:

1. Electrode: This is the correct answer. The electrode is inserted into the cochlea and delivers electrical signals to the auditory nerve.
2. Internal Magnet: This component assists in holding the external and internal parts of the implant together across the skin but is not directly involved in stimulating the auditory nerve.
3. Receiver: This is the component that receives signals from the external parts of the implant and sends them to the electrode, but it is not the primary structure for direct stimulation.
4. Antenna: An external component typically used to receive signals from a transmitter, not directly related to the internal cochlear structure.

In conclusion, the marked structure responsible for direct stimulation within the cochlea is the Electrode.