Which one of the following is showing the correct sequential order of vertebrae in the vertebral column of human beings ?

Options

A. Cervical-lumbar-thoracic-sacral-coccygeal
B. Cervical-thoracic-sacral-lumbar-coccygeal
C. Cervical-sacral-thoracic-lumbar-coccygeal
D. Cervical-thoracic-lumbar-sacral-coccygeal

Explanation

To determine the correct sequential order of vertebrae in the vertebral column of human beings, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Vertebral Column**: The human vertebral column is divided into five main regions, each consisting of a different type of vertebrae.

2. **Identify the Regions**:
- **Cervical Vertebrae**: These are the first set of vertebrae located in the neck region. There are 7 cervical vertebrae (C1 to C7).
- **Thoracic Vertebrae**: Following the cervical vertebrae, these are located in the upper and mid-back. There are 12 thoracic vertebrae (T1 to T12).
- **Lumbar Vertebrae**: These are located in the lower back region. There are 5 lumbar vertebrae (L1 to L5).
- **Sacral Vertebrae**: These vertebrae are fused to form the sacrum, located below the lumbar region. There are typically 5 sacral vertebrae (S1 to S5).
- **Coccygeal Vertebrae**: These are the vertebrae that form the coccyx or tailbone, usually consisting of 4 fused vertebrae.

3. **Establish the Correct Order**: The correct sequential order of the vertebrae from top to bottom in the vertebral column is:
- Cervical
- Thoracic
- Lumbar
- Sacral
- Coccygeal

4. **Select the Correct Option**: Based on the options provided, the correct sequence is:
- Option 4: Cervical, Thoracic, Lumbar, Sacral, Coccygeal.

### Final Answer:
The correct sequential order of vertebrae in the vertebral column of human beings is: **Cervical, Thoracic, Lumbar, Sacral, Coccygeal** (Option 4).

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