Name: _________________________________ Date: _____________ Period: ________
CARDIO-RESPIRATORY SYSTEM QUIZ
Multiple Choice: Choose the best answer to each of the questions below. (1 pt. each)
1. Which of the following is the main organ(s) of the respiratory system?
a. Heart
b. Lungs
c. Pancreas
d. All of the above are the main organs of the respiratory system
2. The waste product(s) in our bodies that we get rid of by breathing out is
a. Carbon dioxide
b. Carbon monoxide
c. Oxygen
d. Both A and B are waste products
3. Tiny air sacs in the lungs where the gas exchange actually occurs are called
a. Bronchioles
b. Bronchi
c. Alveoli
d. Epiglottis
4. Which of the following is a passageway for both food and air?
a. Esophagus
b. Trachea
c. Larynx
d. Pharynx
5. The organs that work to warm and humidify the air are
a. Nose and mouth
b. Pharynx and mouth
c. Mouth and Epiglottis
d. Nose and pharynx
6. Another name for the “voice box” is
a. Pharynx
b. Trachea
c. Larynx
d. Bronchioles
7. Your trachea is also known as the
a. Throat
b. Windpipe
c. Voice box
d. Epiglottis
8. Blood vessels that carry blood AWAY from the heart are called:
a. Arteries
b. Veins
c. Capillaries
d. Heart
9. The smallest blood vessels that surround the alveoli are:
a. Arteries
b. Veins
c. Capillaries
d. Heart
10. The blood vessels that carry blood de-oxygenated blood to the lungs are:
a. Pulmonary veins
b. Pulmonary arteries
c. Capillaries
d. Systemic arteries
True or False: State whether each statement is true or false. If the statement is false, replace
the underlined word to make the statement correct.(1 pt each)
____________________ 11. “Breathing in” is also known expiration.
____________________ 12. When you exhale, your diaphragm moves downward.
____________________ 13. There are heart is a muscle that pumps blood throughout the body.
____________________ 14. Cilia, found in the mouth, help to trap and filter out dust and other
particles that might enter when we breathe in.
____________________ 15. The bronchioles contain plasma, red and white blood cells, and
platelets.
Short Answer: Respond to each question to the best of your ability. Be sure to answer the
entire question!
16. Where in the respiratory tract would you find “C” rings? Explain the purpose of these
rings and what might happen if we did not have them. (3 pts)
Short Answer (continued):
17. Why are the ribs so important to the cardio-respiratory systems? (1 pt)
18. What is the epiglottis and how does it work? What would happen if it did not function
properly? (3 pts)
19. How is sound produced in the voice box? (2 pts)
Trachea
Epiglottis
Mouth
Alveoli
Bronchi
Lung
Diaphragm
Nose
Larynx (voice
box)