Identify the bony framework connecting the chest bone and backbone.

Options

A. Vertebrate
B. Muscles
C. Diaphragm
D. Ribcage

Explanation

**Step-by-Step Solution:**

1. **Understanding the Terms:**
- The question asks for the bony framework that connects the chest bone and the backbone.
- The "chest bone" refers to the ribs, and the "backbone" refers to the vertebrae.

2. **Identifying the Options:**
- The first option is "vertebrae," which only refers to the backbone.
- The second option is "muscles," which are soft tissues and do not form a bony framework.
- The third option is "diaphragm," which is also a muscle and does not provide a bony connection.
- The fourth option is "rib cage," which is made up of ribs that connect to the backbone.

3. **Analyzing the Rib Cage:**
- The rib cage is a structure formed by the ribs that encircle the chest area.
- It connects to the vertebrae at the back, forming a protective cage around vital organs like the heart and lungs.

4. **Conclusion:**
- The bony framework that connects the chest bone (ribs) and the backbone (vertebrae) is the rib cage.

5. **Final Answer:**
- The correct answer is the "rib cage."

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