The volume of air remaining in the respiratory passages and lungs after forceful expiration is called:

During chronic bronchitis, the bronchi commonly lose appendages called , which function to cleanse the respiratory passages.

Which part of the respiratory system pushes and pulls the lungs to draw air in and out?

The bronchial tree, lungs, and trachea are components of the respiratory tract.

What other functions does the upper respiratory system have that do notinvolve moving air into the lower respiratory system?

Which respiratory structure acts as an "exit" for air leaving the respiratory system?Multiple Choicealveolitracheabronchinasal cavity