Cartilage present in trachea , larynx and bronchi is

Options

A. Hyaline
B. Fibrous
C. Elastic
D. Calcified

Answer

To answer the question about the type of cartilage present in the trachea, larynx, and bronchi, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify the type of cartilage found in the trachea, larynx, and bronchi from the given options: hyaline, fibrous, elastic, or calcified.

2. **Define Cartilage**: Cartilage is a smooth, elastic tissue that provides support and flexibility to various body parts. It is important to know the different types of cartilage and their characteristics.

3. **Identify Types of Cartilage**:
- **Elastic Cartilage**: Contains elastin protein, making it very flexible. Found in structures like the epiglottis and ears.
- **Hyaline Cartilage**: Contains collagen (type 2) and is tough yet flexible. It is the most common type of cartilage in the body.
- **Fibrous Cartilage**: Contains both type 1 and type 2 collagen, making it very tough. Found in areas like the vertebral discs.
- **Calcified Cartilage**: Has calcium deposits, making it rough and tough.

4. **Locate the Cartilage Types**:
- **Elastic Cartilage**: Found in the epiglottis and ears.
- **Hyaline Cartilage**: Present in the trachea, larynx, and bronchi.
- **Fibrous Cartilage**: Found in vertebral discs.
- **Calcified Cartilage**: Not typically found in the trachea, larynx, or bronchi.

5. **Conclusion**: Based on the locations of the different types of cartilage, we conclude that the cartilage present in the trachea, larynx, and bronchi is **hyaline cartilage**.

### Final Answer:
The cartilage present in the trachea, larynx, and bronchi is **hyaline cartilage**.

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