NETA Personal Trainer Practice Exam 2026 - Free Personal Trainer Practice Questions and Study Guide

The spinal column, or vertebral column, consists of a total of 33 segments. This number is derived from the total count of vertebrae in the different regions of the spine. The spinal column is divided into five regions:

1. Cervical – 7 vertebrae

2. Thoracic – 12 vertebrae

3. lumbar – 5 vertebrae

4. Sacral – 5 vertebrae, which are fused together to form the sacrum

5. Coccygeal – typically 4 vertebrae, which are fused to form the coccyx or tailbone.

When you count all the individual vertebrae, including those that are fused in the sacral and coccygeal regions, you reach a total of 33. This foundational knowledge is crucial for personal trainers as it helps them understand the anatomy of the human body, which is essential for designing safe and effective exercise programs. Knowing the total number of vertebrae can also aid in executing proper techniques and movements that safeguard the spine during physical activities.