What is the primary focus of the term 'pulmonary'?

The term 'pulmonary' specifically pertains to the lungs and their functions. It is derived from the Latin word 'pulmo,' which translates to 'lung.' In medical contexts, 'pulmonary' is commonly used to describe various conditions, diseases, treatments, and anatomy that involve the lungs, such as pulmonary hypertension, pulmonary function tests, and pulmonary embolism. Understanding this term is essential in healthcare, as respiratory health is a critical component of overall well-being and is closely monitored in many medical settings. Other options relate to different systems in the body, but none focus on the lungs, making 'pulmonary' uniquely relevant to respiratory matters.