Intercostal muscles are attached to :

Options

A. Abdomen
B. Thigh
C. Ribs
D. Diaphragm

Answer

**Step-by-Step Solution:**

1. **Understanding Intercostal Muscles**: Intercostal muscles are a set of muscles located between the ribs. They are crucial for the respiratory process.

2. **Types of Intercostal Muscles**: There are two types of intercostal muscles: external intercostal muscles and internal intercostal muscles. Both play a significant role in the mechanics of breathing.

3. **Function of Intercostal Muscles**: These muscles help in the expansion and contraction of the thoracic cavity during breathing. When they contract, they increase the volume of the thoracic cavity, which allows air to be drawn into the lungs (inspiration). Conversely, when they relax, the volume decreases, pushing air out of the lungs (expiration).

4. **Identifying Attachment Points**: The question asks where intercostal muscles are attached. Since these muscles are located between the ribs, they are directly attached to the ribs.

5. **Conclusion**: Based on the information gathered, the correct answer to the question "Intercostal muscles are attached to:" is **C. ribs**.

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