5 Pairs of false ribs present in `:-`

Options

A. Man
B. Rabbit
C. Frog
D. None

Answer

To answer the question about the presence of 5 pairs of false ribs, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Ribs**:
- In humans, there are a total of 12 pairs of ribs.

2. **Classify the Ribs**:
- Ribs are classified into three categories:
- **True Ribs**: The first 7 pairs (1-7) are known as true ribs. They are directly attached to the sternum via hyaline cartilage.
- **False Ribs**: The next 5 pairs (8-12) are classified as false ribs. This includes:
- **Vertebrochondral Ribs**: The 8th, 9th, and 10th pairs, which are indirectly attached to the sternum through the cartilage of the 7th rib.
- **Floating Ribs**: The 11th and 12th pairs, which are not attached to the sternum at all.

3. **Count the False Ribs**:
- The total number of false ribs is 5 pairs (8th, 9th, 10th, 11th, and 12th).

4. **Identify the Correct Answer**:
- Since the question asks about the presence of 5 pairs of false ribs, the answer is that they are present in humans.

### Final Answer:
The 5 pairs of false ribs are present in humans.

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