Final answer:
The volume of air that fills the conducting zone of the respiratory system is known as the anatomical dead space.
Step-by-step explanation:
The volume of air that fills the conducting zone is called the anatomical dead space.
The conducting zone includes structures like the nasal cavity, pharynx, trachea, bronchi, and bronchioles, which provide passageways for air but are not directly involved in gas exchange. That function is reserved for the respiratory zone, which includes the alveoli where gas exchange occurs. The conducting zone's roles are to warm, humidify, and filter the air we breathe in, as well as to provide a passage for the air to reach the respiratory zone.