Trachea is lined with incomplete rings of

Options

A. (a) fibrous cartilage
B. (b) calcified cartilage
C. (c) elastic cartilage
D. (d) hyaline cartilage

Answer

**Step-by-Step Solution:**

1. **Identify the Structure**: The question asks about the lining of the trachea, which is also known as the windpipe. The trachea serves as a passage for air from the nasal cavity to the lungs.

2. **Understand the Function of the Trachea**: The trachea is lined with cilia that help filter the air entering the lungs. These cilia also help to moisten and warm the air to body temperature.

3. **Examine the Cartilage**: The trachea is supported by cartilage that is described as incomplete and C-shaped. This shape is crucial because it allows for the flexibility needed for swallowing food and prevents the trachea from collapsing.

4. **Determine the Type of Cartilage**: The type of cartilage that makes up the trachea is hyaline cartilage. This type of cartilage is characterized by its glassy appearance and is the most common type of cartilage found in the body.

5. **Eliminate Incorrect Options**: The question may provide multiple-choice answers. The incorrect types of cartilage include:
- Fibrous cartilage
- Calcified cartilage
- Elastic cartilage
The correct answer is therefore hyaline cartilage.

6. **Final Answer**: The trachea is lined with incomplete rings of **hyaline cartilage**.

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