Which organ is denoted by the prefixes 'pneumo-' and 'pulmo-'?

The prefixes 'pneumo-' and 'pulmo-' both refer to the organ involved in respiration, specifically the lungs. The prefix 'pneumo-' is derived from the Greek word for air or breath, linking it directly to the function of the lungs in gas exchange. Similarly, 'pulmo-' comes from the Latin word 'pulmo,' meaning lung. Together, these prefixes indicate a relationship with the respiratory system, highlighting the roles and functions associated with the lungs in medical terminology. This is why the correct answer is the lung, as both prefixes clearly denote this particular organ within the context of respiratory health and anatomy.