The structure that protects the lungs and heart and forms the wall of the thoracic cavity is the rib cage. In human beings, there are 12 pairs of ribs, making a total of 24 ribs. These ribs are classified into three categories:

1. **True Ribs** (first 7 pairs) – These directly attach to the sternum (breastbone) through their costal cartilage.
2. **False Ribs** (next 3 pairs) – These do not attach directly to the sternum but are connected to the 7th rib via costal cartilage.
3. **Floating Ribs** (last 2 pairs) – These do not attach to the sternum at all and are only attached to the vertebrae at the back.

The rib cage not only protects vital organs like the lungs and heart but also plays a crucial role in respiration by allowing expansion and contraction during breathing.

Question

The structure that protects the lungs and heart and forms the wall of the thoracic cavity is the rib cage. In human beings, there are 12 pairs of ribs, making a total of 24 ribs. These ribs are classified into three categories:

1. **True Ribs** (first 7 pairs) – These directly attach to the sternum (breastbone) through their costal cartilage.
2. **False Ribs** (next 3 pairs) – These do not attach directly to the sternum but are connected to the 7th rib via costal cartilage.
3. **Floating Ribs** (last 2 pairs) – These do not attach to the sternum at all and are only attached to the vertebrae at the back.

The rib cage not only protects vital organs like the lungs and heart but also plays a crucial role in respiration by allowing expansion and contraction during breathing.

Knowee AI · Accepted Answer

The structure that protects the lungs and heart and forms the wall of the thoracic cavity is the rib cage. In human beings, there are 12 pairs of ribs, making a total of 24 ribs. These ribs are classified into three categories:

1. **True Ribs** (first 7 pairs) – These directly attach to the sternum (breastbone) through their costal cartilage.
2. **False Ribs** (next 3 pairs) – These do not attach directly to the sternum but are connected to the 7th rib via costal cartilage.
3. **Floating Ribs** (last 2 pairs) – These do not attach to the sternum at all and are only attached to the vertebrae at the back.

The rib cage not only protects vital organs like the lungs and heart but also plays a crucial role in respiration by allowing expansion and contraction during breathing.

In human beings, how many pairs of that structure are present which protect lungs and heart and form the wall of thoracic cavity?

Question

In human beings, how many pairs of that structure are present which protect lungs and heart and form the wall of thoracic cavity?

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