The membrane that gives us the ability to discriminate different pitches of sound is the

Options

A. Round window
B. Tympanic membrane
C. Tectorial membrane
D. Basilar membrane

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the specific membrane responsible for our ability to differentiate between various pitches of sound.

2. **Identifying the Options**: The options provided are:
- A. Round window
- B. Endolymphatic membrane
- C. Basilar membrane
- D. Vascular membrane

3. **Function of the Inner Ear**: The inner ear contains structures that are crucial for hearing. Among these structures is the cochlea, which is part of the membranous labyrinth.

4. **Role of the Basilar Membrane**: The basilar membrane is located within the cochlea. It is a flexible membrane that responds to sound vibrations. Different frequencies of sound cause the basilar membrane to vibrate at different locations along its length.

5. **Pitch Discrimination**: The ability to discriminate between different pitches of sound is primarily due to the varying vibrations of the basilar membrane. Higher frequencies cause vibrations near the base of the membrane, while lower frequencies affect the apex.

6. **Conclusion**: Based on the function of the membranes in the inner ear, the correct answer to the question is the **Basilar membrane**.

**Final Answer**: The membrane that gives us the ability to discriminate different pitches of sound is the **Basilar membrane**.

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