Which of the following statements is not true concerning anatomical variations in the human body?

• A. Anatomical variations are common and often have no clinical significance.
• B. Anatomical variations can include differences in the number of ribs or vertebrae.
• C. Most anatomical variations do not affect the function of the body.
• D. Anatomical variations are rare and usually indicate a pathological condition.

Answer: (D)

Verified step by step guidance

1. Begin by understanding the concept of anatomical variations. These are differences in the anatomy of individuals that are not considered abnormal or pathological.
2. Recognize that anatomical variations are common in the human population. Examples include variations in the number of ribs, vertebrae, or even the branching patterns of blood vessels.
3. Consider the clinical significance of anatomical variations. Many variations do not affect the function of the body and are not associated with any health issues.
4. Evaluate the statement that anatomical variations are rare and usually indicate a pathological condition. This statement contradicts the common understanding that variations are frequent and typically benign.
5. Conclude that the statement 'Anatomical variations are rare and usually indicate a pathological condition' is not true, as anatomical variations are common and often have no clinical significance.