Write the special functional activity of the following structures. For example :Kidney and `ul"excretion"`.
.C. shaped cartilage and ……….

Explanation

### Step-by-Step Solution:

1. **Identify the Structure**: The structure in question is the "C-shaped cartilage," which is also known as the tracheal cartilage.

2. **Location of the Structure**: This cartilage is located in the throat region, specifically surrounding the trachea (windpipe).

3. **Function of the C-shaped Cartilage**: The primary function of the C-shaped cartilage is to provide structural support to the trachea. It prevents the trachea from collapsing, especially when there is a low amount of air.

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