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Ribs attached to sternum are...

Ribs attached to sternum are

A

first seven pairs

B

all ten ribs

C

first ten rib pairs

D

first five rib pairs.

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Identify the Ribs**: The human rib cage consists of 12 pairs of ribs. 2. **Determine the Types of Ribs**: Ribs are classified into three categories based on their attachment to the sternum: - **True Ribs**: These are the first seven pairs of ribs (ribs 1-7) that are directly attached to the sternum. - **False Ribs**: These include the next three pairs (ribs 8-10) that are not directly attached to the sternum but are connected to the 7th rib. - **Floating Ribs**: The last two pairs (ribs 11-12) are not attached to the sternum at all. 3. **Focus on the Question**: The question specifically asks for the ribs that are attached to the sternum. 4. **Conclusion**: Since the first seven pairs of ribs are the ones that attach directly to the sternum, they are referred to as "true ribs." 5. **Final Answer**: Therefore, the ribs attached to the sternum are the first seven pairs of ribs.
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