Quiz 3

What is the primary function of the human respiratory system?

Which gas do we inhale for our body’s cells to use?

Which body part protects the lungs and helps them expand and contract?

Which part of the respiratory system carries air from the throat to the lungs?

Where does the exchange of gases (oxygen and carbon dioxide) occur in the lungs?

Which gas is breathed out by our lungs as a waste product?

What do we call the tiny air sacs in the lungs where gas exchange takes place?

How do oxygen and carbon dioxide move between the lungs and the bloodstream?

Which of the following is NOT a function of the respiratory system?

What is the dome-shaped muscle below the lungs that helps us breathe?

During vigorous exercise, why do we breathe faster and deeper?

What is the main function of red blood cells in the bloodstream?

How does the respiratory system work together with the cardiovascular system?

Which of the following is true about the alveoli?

What happens when we inhale air?

Which activity is most likely to increase the rate of breathing and oxygen intake?

Which of the following is NOT a part of the respiratory system?

How does regular exercise benefit the respiratory system?

What is the purpose of the mucus in the respiratory system?

How is oxygen transported from the lungs to body cells?

What are the tiny air sacs in the lungs called?

What surrounds the alveoli in the lungs?

What is the main purpose of the lungs?

In the analogy comparing the lungs to a car engine, what does oxygen represent?

Without the lungs, what would be the consequence for our body?

How does oxygen enter our bloodstream from the lungs?