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

To determine the location of both kidneys inside the human body, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Kidneys**:
- The kidneys are reddish-brown, bean-shaped organs that play a crucial role in excretion and maintaining homeostasis in the body.

2. **Identify the Position of the Kidneys**:
- The kidneys are located in the abdominal cavity, specifically in a region known as the retroperitoneal space. This means they are situated behind the peritoneum, which is the lining of the abdominal cavity.

3. **Locate the Vertebrae**:
- The human spine consists of several vertebrae, categorized into different regions: cervical, thoracic, lumbar, sacral, and coccygeal.
- The thoracic vertebrae are numbered from T1 to T12, and the lumbar vertebrae are numbered from L1 to L5.

4. **Determine the Specific Vertebrae for the Kidneys**:
- The kidneys are typically located between the 12th thoracic vertebra (T12) and the 3rd lumbar vertebra (L3). This positioning allows for adequate space for the kidneys and their surrounding structures.

5. **Evaluate the Options**:
- Given the options provided:
- A) Between the 5th thoracic and 12th thoracic vertebra in retroperitoneal
- B) Between the 7th thoracic and 5th lumbar vertebra in retroperitoneal
- C) Between the 12th thoracic and 3rd lumbar vertebra in retroperitoneal
- D) Between the 5th thoracic and 3rd thoracic vertebra in retroperitoneal
- The correct answer is option C: "between the 12th thoracic and 3rd lumbar vertebra in retroperitoneal."

### Final Answer:
The kidneys are located between the 12th thoracic vertebra (T12) and the 3rd lumbar vertebra (L3) in the retroperitoneal space.

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