Which part of internal eaer receive sound wves in man?

Options

A. Cochlea
B. Legena and utriculus
C. Ampullae and utriculus
D. None of the above

Answer

### Step-by-Step Solution:

1. **Identify the Structure of the Internal Ear**: The internal ear consists of several structures, but the main organ responsible for hearing is the cochlea.

2. **Understand the Function of the Cochlea**: The cochlea is a spiral-shaped structure that plays a crucial role in the auditory system. It is responsible for converting sound waves into neural signals.

3. **Locate the Organ of Corti**: Within the cochlea, there is a specific structure known as the Organ of Corti. This organ is often referred to as the "body's microphone" because it contains hair cells that detect sound vibrations.

4. **Identify the Basilar Membrane**: The Organ of Corti is situated on the basilar membrane, which is the floor of the cochlear duct. The basilar membrane vibrates in response to sound waves, allowing the Organ of Corti to function effectively.

5. **Conclude the Answer**: Since the cochlea contains the Organ of Corti, which is responsible for receiving sound waves, we can conclude that the cochlea is the part of the internal ear that receives sound waves in humans.

### Final Answer:
The part of the internal ear that receives sound waves in man is the **cochlea**.

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