Select the mismatch.

Options

A. Scapula - Situated in between `2^(nd)` to `7^(th)` ribs
B. Ball and socket joint - Humerous and pectoral girdle
C. Rib cage - Formed by vertebrae,ribs and stemum
D. Pelvic girdle - Aarticulates with thigh bone at public symphysis

Answer

To solve the question of selecting the mismatch, we will analyze each option provided in the video transcript step by step.

### Step 1: Analyze the first option
- **Statement**: Scapula is situated between the 2nd and 7th rib.
- **Analysis**: The scapula, also known as the shoulder blade, is indeed located in the upper back region and is positioned between the 2nd and 7th ribs.
- **Conclusion**: This statement is correct.

### Step 2: Analyze the second option
- **Statement**: The ball and socket joint is formed by the humerus and pectoral girdle.
- **Analysis**: The ball and socket joint allows for a wide range of motion and is formed by the head of the humerus fitting into the glenoid cavity of the scapula (part of the pectoral girdle).
- **Conclusion**: This statement is also correct.

### Step 3: Analyze the third option
- **Statement**: Rib cage is formed by vertebrae, ribs, and sternum.
- **Analysis**: While the rib cage does consist of vertebrae, ribs, and sternum, it is important to note that the ribs are connected to the sternum via costal cartilage. The statement is misleading as it does not mention the role of costal cartilage in the formation of the rib cage.
- **Conclusion**: This statement is a mismatch.

### Step 4: Analyze the fourth option
- **Statement**: Pelvic girdle articulates with the thigh bone at the pubic symphysis.
- **Analysis**: The pelvic girdle does articulate with the thigh bone (femur) at the hip joint, but the pubic symphysis is the joint where the two pubic bones meet, not where the thigh bone connects. Therefore, this statement is misleading but not entirely incorrect.
- **Conclusion**: This statement is somewhat misleading but not a clear mismatch.

### Final Conclusion
- The clear mismatch identified is the third option regarding the rib cage, as it does not accurately convey the role of costal cartilage in its formation.

### Selected Mismatch
- The third option regarding the rib cage is the mismatch.

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