Final answer:
Medical terminology is primarily derived from ancient Greek and Latin, two languages chosen for their precision and stability over time, helping to eliminate ambiguity in medical communication.
Step-by-step explanation:
The two languages that make up medical terminology are ancient Greek and Latin. These languages provide the roots for the precise and technical vocabulary used by anatomists and health care providers. The reason for using these languages is to ensure clarity and prevent ambiguity in medical communication. For instance, instead of saying a scar is "above the wrist," a medical professional would use terms that specify the exact location in relation to anatomical landmarks, ensuring that other professionals understand the exact area being referred to, whether it's on the forearm, at the base of the hand, or the palm-side or back-side of the wrist.