Sternum is connected to ribs by

Answer

**Step-by-Step Solution:**

1. **Identify the Structure**: The question asks about the connection between the sternum and the ribs. The sternum is a flat bone located in the center of the chest, while the ribs are the curved bones that form the rib cage.

2. **Understand the Connection**: The sternum is connected to the ribs through a specific type of tissue. This connection is crucial for the structure and function of the rib cage.

3. **Name the Connecting Tissue**: The tissue that connects the sternum to the ribs is called "costal cartilage." This cartilage is flexible and allows for movement, which is essential for breathing.

4. **Function of Costal Cartilage**: The costal cartilage not only connects the sternum to the ribs but also plays a role in the expansion of the chest cavity during respiration. This expansion is vital for inhaling air into the lungs.

5. **Conclude the Answer**: Therefore, the sternum is connected to the ribs by costal cartilage.

**Final Answer**: The sternum is connected to the ribs by costal cartilage.

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