Respiratory System Lecture Quiz

Conducting Zone of the Respiratory System

• Comprised of structures including the nasal cavity, pharynx, larynx, trachea, bronchi, and bronchioles.
• Functions to transport, warm, filter, and humidify air before it reaches the lungs.

Gas Exchange Location

• Gas exchange occurs in the alveoli, tiny air sacs in the lungs.
• Alveoli are surrounded by capillaries, allowing oxygen to enter the bloodstream and carbon dioxide to exit.

Surface Area and Smaller Airways

• The bronchioles, particularly the terminal and respiratory bronchioles, greatly increase surface area.
• These numerous smaller airways facilitate an efficient exchange of gases due to their extensive surface coverage.

Entry Point of Air

• Air enters the respiratory system through the nose or mouth.
• The nasal cavity filters and humidifies the incoming air, enhancing respiratory efficiency.

Lobes of the Right Lung

• The right lung is composed of three lobes: superior, middle, and inferior.
• These lobes allow for optimal organization and expansion during breathing.