CAMRT Radiography Practice Exam 2026 - Free Radiography Practice Questions and Study Guide

Question: 1 / 1100

How many sacral segments does the sacrum consist of?

3 segments fused together

4 segments fused together

5 segments fused together

The sacrum is comprised of five segments that fuse together during development to form a single triangular bone at the base of the spine. This structure supports the pelvis and connects the spine to the hip bones. The fusion of the five sacral vertebrae typically occurs by late adolescence to early adulthood, resulting in a solid and stable unit that plays a crucial role in weight-bearing and movement.

In understanding this anatomical feature, it is essential to note that the sacrum does not contain three, four, or six segments, which would misrepresent its structure. The accurate count of five segments is foundational in the study of human anatomy, particularly in contexts related to radiography, where knowledge of skeletal structures is crucial for interpreting images and understanding potential issues related to spinal health.

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6 segments fused together

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