Answer
Anatomical Variation
Work Step by Step
The standard human anatomy we encounter while studying anatomical schemes in books is the anatomy seen in about 70% or
more of people. Some of the variations from the rest 30% are of serious clinical importance, influencing life and treatment of people who have it. The infants born with heart defects are an example of an impact that anatomical differences make to one's wellbeing.
The information about anatomical variations is to be found on p. 13
