How many vertebrae are typically in the adult spine?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the California Self‑Insurance Plans (SIP) Exam with our interactive quiz. Benefit from multiple-choice questions, detailed explanations, and essential tips to enhance your knowledge and succeed in your exam!

Multiple Choice

How many vertebrae are typically in the adult spine?

Explanation:
The adult spine is described as having 33 vertebral segments: 7 cervical, 12 thoracic, 5 lumbar, 5 sacral (fused into the sacrum), and 4 coccygeal (fused into the coccyx). In adulthood the sacral and coccygeal bones fuse, but the number of vertebral segments counted anatomically remains 33. That’s why 33 is the standard total. The other options either omit the sacral/coccygeal regions or count only movable sections, leading to smaller totals.

The adult spine is described as having 33 vertebral segments: 7 cervical, 12 thoracic, 5 lumbar, 5 sacral (fused into the sacrum), and 4 coccygeal (fused into the coccyx). In adulthood the sacral and coccygeal bones fuse, but the number of vertebral segments counted anatomically remains 33. That’s why 33 is the standard total. The other options either omit the sacral/coccygeal regions or count only movable sections, leading to smaller totals.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy