What does the prefix "arthr-" refer to in medical terminology?

The prefix "arthr-" in medical terminology specifically refers to a joint. This prefix is derived from the Greek word "arthron," which means joint. It is commonly used in various medical terms, such as "arthritis," which denotes inflammation of the joints, and "arthroscopy," which is a procedure used to visualize a joint. Understanding this prefix helps in grasping the meaning of many medical terms related to joint anatomy, diseases, and treatments.