Sensory crista of ampulla of mammalian ear is c onnected with

Options

A. Sense of balance
B. Sense of low hearing
C. Sense of loud hearing
D. Secretion of ear wax.

Answer

### Step-by-Step Solution:

1. **Understanding the Structure**: The sensory crista of the ampulla is part of the semicircular canals in the inner ear of mammals. The ampulla is the enlarged end of each semicircular canal.

2. **Identifying Components**: The crista is a ridge located within the ampulla. It contains sensory hair cells that are crucial for detecting movement.

3. **Function of the Crista**: The sensory hair cells in the crista have cytoplasmic projections known as stereocilia. These structures are sensitive to changes in motion and orientation.

4. **Role in Balance**: The primary function of the sensory crista is to sense movements and maintain dynamic equilibrium, which is essential for balance.

5. **Analyzing the Options**:
- Sense of balance: Correct, as it relates to the function of the crista.
- Sense of low hearing: Incorrect, as this is not related to the crista.
- Sense of loud hearing: Incorrect, as this is also not related to the crista.
- Secretion of earwax: Incorrect, as this is unrelated to the function of the crista.

6. **Conclusion**: The sensory crista of the ampulla of the mammalian ear is connected with the sense of balance.

### Final Answer:
The sensory crista of the ampulla of the mammalian ear is connected with the **sense of balance**.

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