Tectorial membrane is present is

Options

A. Upper chamber of cochlea
B. Middle chamber of membranous labyrinth
C. Lower chamber of cochlea
D. Between external ear and middle ear

Answer

**Step-by-Step Solution:**

1. **Understanding the Tectorial Membrane**: The tectorial membrane is a crucial structure in the auditory system, specifically within the cochlea of the inner ear. It plays a significant role in the process of hearing.

2. **Location of the Tectorial Membrane**: The tectorial membrane is located above the organ of Corti, which is situated in the cochlea. The cochlea is divided into three chambers: the upper chamber (scala vestibuli), the middle chamber (scala media), and the lower chamber (scala tympani).

3. **Identifying the Correct Chamber**: The organ of Corti, which the tectorial membrane covers, is found in the middle chamber of the cochlea, also known as the scala media. This is where sound vibrations are converted into neural signals.

4. **Conclusion**: Based on the information, the tectorial membrane is present in the middle chamber of the membranous labyrinth (scala media).

5. **Final Answer**: Therefore, the correct answer to the question is that the tectorial membrane is present in the middle chamber of the membranous labyrinth.

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