What does 'Gastro' refer to in medical terms?

In medical terminology, 'Gastro' specifically refers to the stomach. It originates from the Greek word 'gaster', which means 'stomach'. This prefix is commonly used in various medical terms related to the stomach, such as gastritis (inflammation of the stomach lining) or gastroscopy (a procedure to visually examine the stomach). Understanding the root of medical prefixes is crucial for interpreting medical language accurately, particularly when diagnosing or discussing gastrointestinal issues. The other options, while related to the digestive system or body, do not share this direct connection with the term 'gastro'.