Match the respiratory organ to its function. 

Which of the following correctly describes the modifications in the mucosa of the small intestines? 

Match the following digestive diseases with their description. 

What effect does the sympathetic nervous system have on the bronchioles? 

Which of the following is NOT part of the small intestine? 

Which lung pressure keeps the lungs from collapsing? 

Which of the following is the most powerful respiratory stimulant? 

Which of the following describes the ability of the blood to carry more oxygen as a result of being at a higher altitude?  

What two factors must be coupled for efficient gas exchange? 

Which of the following would happen if respiratory rate increased?