Question 1
Which of the following provide the greatest surface area for gas exchange?
◦ alveoli
◦ respiratory bronchioles
◦ alveolar sacs
◦ alveolar ducts
Question 2
The respiratory membrane is a combination of ________.
◦ respiratory bronchioles and alveolar sacs
◦ atria and alveolar sacs
◦ alveolar and capillary walls and their fused basement membranes
◦ respiratory bronchioles and alveolar ducts