The membranous labyrinth is concerned with

Options

A. Hearing
B. Balancing
C. Sound production
D. Hearing and balancing.

Answer

To answer the question "The membranous labyrinth is concerned with," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure**: The membranous labyrinth is a part of the inner ear. It is crucial to understand its role in the auditory and vestibular systems.

2. **Understand the Components**: The membranous labyrinth consists of several structures, including the semicircular canals, utricle, and saccule. Each of these components has specific functions.

3. **Function of the Semicircular Canals**: The semicircular canals (anterior, posterior, and lateral) are primarily involved in maintaining balance and detecting rotational movements of the head.

4. **Function of the Utricle and Saccule**: The utricle and saccule are responsible for detecting linear accelerations and the position of the head relative to gravity. They contain specialized hair cells (macula) that respond to changes in position.

5. **Integration of Information**: The information gathered by the hair cells in the membranous labyrinth is sent to the brain via the auditory nerve. This information helps maintain balance and spatial orientation.

6. **Conclusion**: Therefore, the membranous labyrinth is primarily concerned with the function of balance and equilibrium, while the cochlea (another part of the inner ear) is responsible for hearing.

### Final Answer:
The membranous labyrinth is concerned with maintaining balance and equilibrium.