Choose the wrong statements with reference is human inner ear

Options

A. Bony labyrinth divides into two areas namyly cochles and vestibule
B. Scala vestibuli and scala media are separated by a membrane called Reissner's membrane
C. Scala media and scala tympani are separated by basiilar membrane.
D. Scala vestibuli and scala tympani are filled with endolymph

Answer

To solve the question of identifying the wrong statements regarding the human inner ear, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding the Structure of the Inner Ear**:
- The inner ear consists of the bony labyrinth and the membranous labyrinth. The bony labyrinth is a series of channels that encloses the membranous labyrinth.

2. **Analyzing Each Statement**:
- **Statement A**: "Bony labyrinth divides into two areas namely cochlea and vestibule."
- This statement is incorrect. The bony labyrinth does not divide into just cochlea and vestibule; it also includes the semicircular canals. Therefore, this is a wrong statement.

- **Statement B**: "Scala vestibule and scala media are separated by a membrane called Reissner's membrane."
- This statement is correct. The scala vestibuli and scala media are indeed separated by Reissner's membrane.

- **Statement C**: "Scala media and scala tympani are separated by Besseler membrane."
- This statement is incorrect in terms of terminology. The correct name for the membrane separating scala media and scala tympani is the basilar membrane, not Besseler membrane. Therefore, this is a wrong statement.

- **Statement D**: "Scala vestibule and scala tympani are filled with endolymph."
- This statement is incorrect. The scala vestibuli and scala tympani are filled with perilymph, not endolymph. Therefore, this is also a wrong statement.

3. **Conclusion**:
- The wrong statements identified are A, C, and D. The correct option is that A, C, and D are wrong.

### Final Answer:
The wrong statements with reference to the human inner ear are A, C, and D.

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