What percentage of women have 5 lumbar vertebrae?

• A. 85%
• B. 91%
• C. 78%
• D. 93%

Answer: (B)

The correct percentage indicating that approximately 91% of women have five lumbar vertebrae is supported by anatomical studies that detail the typical composition of the human spine. The majority of the population, including females, exhibit a standard vertebral formula of having five lumbar vertebrae, which plays a crucial role in supporting the lower back and pelvis.

Research confirms that variations in the number of lumbar vertebrae are relatively rare; most individuals consistently have this five-vertebrae structure. This information is particularly relevant for professionals involved in bone densitometry, as recognizing standard anatomical variations can impact assessments and the interpretation of imaging results. Understanding these variations is essential for providing accurate evaluations of bone density and ensuring quality patient care.

Ultimately, the prevalence of five lumbar vertebrae among women underlines the importance of this anatomical detail in both diagnostic and treatment contexts within the field of bone health.