What does the suffix '-graph' signify in medical terms?

The suffix '-graph' signifies an instrument used for recording data or images, particularly in medical contexts. This can refer to various devices that create visual representations of physiological functions, such as an electrocardiograph, which records electrical activity of the heart, or a radiograph, which produces images of internal structures using X-rays. It emphasizes the functionality of recording information about the body's condition or activity.

Understanding how suffixes work is crucial in medical terminology since they often provide important clues about the meaning of a term. This knowledge can aid medical assistants in accurately interpreting medical documentation and communicating effectively with other healthcare professionals.