The number of thoracic vertebrae in the human vertebral column is
- A. 5
- B. 7
- C. 4
- D. 12
Explanation
The column has 7 cervical, 12 thoracic, 5 lumbar, 5 fused sacral and 4 fused coccygeal vertebrae. The twelve thoracic vertebrae each carry a pair of ribs, which helps fix the number in memory.
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