Middle ear has

Options

A. Two sets of tiny bones
B. Three sets of tiny bones
C. Two sets of large bones
D. Three sets of large bones.

Answer

**Step-by-Step Solution:**

1. **Understanding the Middle Ear**: The middle ear is an important part of the auditory system located between the outer ear and the inner ear. It plays a crucial role in the process of hearing.

2. **Identifying the Components**: The middle ear contains three tiny bones known as ossicles. These bones are essential for transmitting sound vibrations from the outer ear to the inner ear.

3. **Naming the Ossicles**: The three ossicles in the middle ear are:
- **Malleus**: Also known as the hammer, it is the first bone that receives vibrations from the tympanic membrane (eardrum).
- **Incus**: Known as the anvil, it is the second bone that connects the malleus to the stapes.
- **Stapes**: Also called the stirrup, it is the third bone and is connected to the oval window of the cochlea.

4. **Arrangement of the Ossicles**: The ossicles are arranged in a chain-like manner:
- The malleus is attached to the tympanic membrane.
- The incus is in the middle, connecting the malleus and stapes.
- The stapes is attached to the oval window of the cochlea.

5. **Function of the Ossicles**: The primary function of these tiny bones is to efficiently transmit sound waves from the outer ear to the inner ear, enhancing the transmission of sound vibrations.

6. **Conclusion**: Based on the information about the middle ear, the correct answer to the question "Middle ear has" is that it has **three sets of tiny bones**.

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