While taking, a medical terminology course, will I need to memorize the entire human body?
You won't need to be a neurosurgeon, but you will need a solid working knowledge of major body systems (cardiovascular, respiratory, nervous, musculoskeletal, etc.) and basic anatomical planes and directions.
Answer
CGTC specific expectations;
https://careertraining.centralgatech.edu/training-programs/certified-ehr-specialist-plus-medical-terminology/