Identify the vertebrochondral ribs from the following

Options

A. All twelve
B. 10th and 11th pairs of ribs
C. 8th, 9th and 10th pairs of ribs
D. 11th and 12th pairs of ribs.

Answer

### Step-by-Step Solution:

1. **Understanding Ribs Classification**: Ribs are classified into three categories based on their attachment to the sternum:
- **True Ribs**: The first seven pairs (1st to 7th) that directly connect to the sternum.
- **False Ribs**: The 8th, 9th, and 10th pairs, which do not connect directly to the sternum but are attached to the cartilage of the rib above.
- **Floating Ribs**: The 11th and 12th pairs, which do not attach to the sternum at all.

2. **Identifying Vertebrochondral Ribs**: The vertebrochondral ribs are specifically the false ribs that are indirectly connected to the sternum via the costal cartilage. This means they are the 8th, 9th, and 10th pairs of ribs.

3. **Analyzing the Options**: The question provides several options:
- All 12, 10th and 11th pairs of ribs
- 8th, 9th, and 10th pairs of ribs
- 11th and 12th pairs of ribs

4. **Selecting the Correct Option**: From the analysis, the correct identification of vertebrochondral ribs is the 8th, 9th, and 10th pairs of ribs.

5. **Final Answer**: Therefore, the vertebrochondral ribs from the options given are the **8th, 9th, and 10th pairs of ribs**.