Read the following statements
STATEMENT A: Middle ear, which is filled with endolymph contains three ossicles which increases the amplitude of sound.
Statement B :Eustachian tube helps in equalising the pressure on either side of ear drum

Options

A. Both statements are correct
B. only statement A is correct
C. only statement B is correct
D. both statements are correct

Answer

To analyze the statements provided in the question, we will evaluate each statement individually.

### Step 1: Evaluate Statement A
- **Statement A**: "Middle ear, which is filled with endolymph contains three ossicles which increases the amplitude of sound."
- The middle ear is not filled with endolymph; instead, it contains air. The three ossicles present in the middle ear are the malleus, incus, and stapes, and they do indeed help in increasing the amplitude of sound by transmitting vibrations from the eardrum to the inner ear.
- **Conclusion**: Statement A is **incorrect**.

### Step 2: Evaluate Statement B
- **Statement B**: "Eustachian tube helps in equalising the pressure on either side of ear drum."
- The Eustachian tube connects the middle ear to the nasopharynx and serves to equalize pressure on both sides of the eardrum. This is crucial for proper hearing and functioning of the ear.
- **Conclusion**: Statement B is **correct**.

### Step 3: Determine the overall correctness of the statements
- Since Statement A is incorrect and Statement B is correct, we can conclude that only Statement B is true.

### Final Answer
- The correct option is that **only Statement B is correct**.

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