Human vertebral formula is

Options

A. `C_(4)T_(8)L_(4)S_(8)C_(8)`
B. `C_(7)T_(8)L_(5)S_(6)C_(7)`
C. `C_(7)T_(12)L_(5)S_(4)C_(5)`
D. `C_(7)T_(12)L_(5)S_(5)C_(4)`.

Answer

To determine the human vertebral formula, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Vertebral Formula**:
- The vertebral formula indicates the number of vertebrae in each segment of the spinal column.

2. **Identify the Segments of the Human Spine**:
- The human spine is divided into different regions: cervical, thoracic, lumbar, sacral, and coccygeal.

3. **Count the Vertebrae in Each Segment**:
- Cervical (C): 7 vertebrae
- Thoracic (T): 12 vertebrae
- Lumbar (L): 5 vertebrae
- Sacral (S): 5 vertebrae (fused)
- Coccygeal (Co): 4 vertebrae (typically fused)

4. **Compile the Vertebral Formula**:
- The human vertebral formula can be represented as:
- C7 - T12 - L5 - S5 - Co4

5. **Total Number of Vertebrae**:
- Adding these together gives a total of 33 vertebrae in the human vertebral column.

6. **Final Answer**:
- Therefore, the human vertebral formula is C7, T12, L5, S5, Co4.