Organ of corti are present in the cavity known as

Options

A. Scala vestibuli
B. Scala tympani
C. Scala media
D. Helicotrema

Answer

**Step-by-Step Solution:**

1. **Understanding the Organ of Corti**: The Organ of Corti is a sensory structure located in the inner ear that is responsible for converting sound vibrations into electrical signals, which are then sent to the brain.

2. **Identifying the Location**: The Organ of Corti is found within a specific cavity of the cochlea, which is the spiral-shaped structure in the inner ear.

3. **Analyzing the Options**: The options provided are:
- A) Scala vestibuli
- B) Scala tympani
- C) Scala media
- D) Helicotrema

4. **Examining the Cochlear Structure**: The cochlea consists of three main fluid-filled chambers:
- The scala vestibuli (upper chamber)
- The scala tympani (lower chamber)
- The scala media (middle chamber, also known as the cochlear duct)

5. **Locating the Organ of Corti**: The Organ of Corti is specifically located on the basilar membrane, which is situated within the scala media. This is the chamber where the sensory hair cells are housed.

6. **Conclusion**: Based on the anatomical structure of the cochlea, the Organ of Corti is present in the scala media.

7. **Final Answer**: Therefore, the correct answer to the question is option C) Scala media.

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