What is the correct location of the human kidneys?

Options

A. Between last lumbar and second sacral
B. Between third thoracic and last lumbar
C. Between last thoracic and third sacral
D. Between last thoracic and third lumbar

Answer

To determine the correct location of the human kidneys, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Human Kidney Structure**:
- The human kidneys are bean-shaped organs that are reddish-brown in color. They are essential components of the human excretory system.

**Hint**: Remember the shape and color of the kidneys as they are distinctive features.

2. **Identifying the Location**:
- The kidneys are located in the abdominal cavity, specifically against the dorsal (back) wall.

**Hint**: Think about the orientation of the kidneys in relation to the body cavity.

3. **Vertebral Levels**:
- The kidneys are positioned between the last thoracic vertebra (T12) and the third lumbar vertebra (L3). This means they are situated in the lower back region.

**Hint**: Familiarize yourself with the thoracic and lumbar vertebrae to understand the positioning.

4. **Evaluating the Options**:
- The question provides several options regarding the location of the kidneys:
- Between last lumbar and second sacral
- Between third thoracic and last lumbar
- Between last thoracic and third sacral
- Between last thoracic and third lumbar

**Hint**: Compare the options with the identified correct vertebral levels.

5. **Selecting the Correct Answer**:
- The correct option is "between last thoracic and third lumbar," which corresponds to the anatomical location of the kidneys.

**Hint**: Look for the option that matches the identified vertebral levels.

### Final Answer:
The correct location of the human kidneys is between the last thoracic vertebra (T12) and the third lumbar vertebra (L3).