AMT's Registered Medical Assistant (RMA) 2025 – 400 Free Practice Questions to Pass the Exam

The term "pulmonary" specifically refers to the lungs and the respiratory system. It originates from the Latin word "pulmo," which translates to "lung." The pulmonary system encompasses all processes related to breathing and gas exchange, including the inhalation of oxygen and the exhalation of carbon dioxide. This is vital for maintaining the body’s oxygen levels and overall respiratory health.

The other options—digestive, circulatory, and nervous systems—are distinct body systems that perform separate functions. The digestive system is responsible for the breakdown of food and nutrient absorption, the circulatory system is involved in blood flow and transporting nutrients and oxygen throughout the body, and the nervous system coordinates bodily functions and responses. Each of these systems has different roles, which further highlights why “pulmonary” is unequivocally associated with the respiratory system.