Where is the location of both kidneys inside the human body ?

Options

A. Between 5th thoracic and 12th thoracic vertebra in retroperitoneal
B. Between 7th thoracic and 5th lumbar vertebra in retroperitoneal
C. Between 12th thoracic and 3rd lumbar vertebra in retroperitoneal
D. Between 5th thoracic and 3rd thoracic vertebra in retroperitoneal

Answer

### Step-by-Step Solution:

1. **Understanding the Structure of Kidneys**:
- Kidneys are two bean-shaped organs located in the human body.
- Each kidney is approximately 12 cm in length (about 4.5 inches).

2. **Location of Kidneys**:
- The kidneys are situated high in the abdominal cavity.
- They are positioned in a retroperitoneal space, which means they are located behind the peritoneum (the lining of the abdominal cavity).

3. **Position of Right and Left Kidneys**:
- The left kidney is generally positioned higher than the right kidney.
- The right kidney is slightly lower and smaller than the left kidney.

4. **Vertebral Level of Kidneys**:
- The left kidney is located at the level of the 12th thoracic vertebra (T12) and extends down to the 3rd lumbar vertebra (L3).
- The upper pole of the left kidney is at T12, while the lower pole is at L3.
- The right kidney, while also in a similar region, is positioned slightly lower due to the presence of the liver above it.

5. **Conclusion**:
- Therefore, the correct location of both kidneys is between the 12th thoracic vertebra and the 3rd lumbar vertebra in a retroperitoneal position.

### Final Answer:
The kidneys are located between the 12th thoracic vertebra and the 3rd lumbar vertebra in a retroperitoneal position.

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