MCQ on Respiratory System

MCQ on respiratory system; can help students evaluate their knowledge of lung anatomy and functions. Answers are also given for MCQs on respiratory system to help you remember. Try our MCQs on respiratory system to see if you can get all the answers right for the questions below.

MCQ on Respiratory System

The respiratory system is the organs and other parts of your body involved in breathing, when you exchange oxygen and carbon dioxide.

MCQs on Respiratory System

1. Which of this system is responsible for breathing?

a. It is the Perspiration system

b. It is the Respiratory system

c. It is the Photosynthesis

d. It is the Urinary system

2. The trachea, lungs, and ——- make up the respiratory system.

a. Liver

b. Diaphragm

c. Esophagus

d. Pancreas

3. When you take a breath, you bring oxygen into your lungs and expel____.

a. Carbon dioxide

b. Carbon monoxide

c. Oxygen

d. Hydrogen

4. When you inhale, your lungs _________________?

a. Inflate

b. Turn purple

c. Deflate

d. Disappear

5. What is the name of the tiny air sacs in the lungs?

a. The name of the tiny air sacs in the lungs is called Bronchioles.

b. The name of the tiny air sacs in the lungs is called Ravioli.

c. The name of the tiny air sacs in the lungs is called Alveoli.

d. The name of the tiny air sacs in the lungs is called Bronx.

6. Which of the following gases is expelled during the respiration process?

a. Oxygen

b. Hydrogen

c. Carbon dioxide

d. None of the above

7. The tiny air sacs found in human lungs are known as_______.

a. Alveoli

b. Bronchus

c. Bronchioles

d. All of the above

8. Which performs the function of filtering and keeping mucus and dirt out of our lungs?

Cilia

Bronchioles

Hairs in the lungs

All of the above

9. The total number of alveoli in the human lungs is estimated to be approximately?

a. 1 billion

b. 800 million

c. 500 million

d. 1500 million

10. Gas exchange between the external environment and the lungs_______.

a. Respiration

b. External respiration

c. Cellular respiration

d. None of the above

11. Which of the following statements about the trachea is false?

a. Has C-shaped rings

b. It is covered by epiglottis

c. It splits into the right and left lungs

d. None of the above

12. —— is the maximum volume of air contained in the lung by a full forced inhalation.

a. Tidal volume

b. Vital capacity

c. Ventilation rate

d. Total lung capacity

13. Which of the following statements about the larynx is correct?

a. It houses the vocal cords

b. It prevents the invading pathogens into the trachea

c. It is an organ made of cartilage and connects the pharynx to the trachea

d. All of the above.

14. Which of the following is the trachea’s function?

a. Gaseous Exchange

b. Filters the air we breathe

c. Exhales the air from the body

d. All of the above

15. Which of the following statements about internal respiration is correct?

a. Production of ATP

b. Exchange of gases between the bloodstream and tissue cells

c. Exchange of gases between alveoli and the bloodstream

d. Breathing between the atmosphere and the alveoli

Answer Key

MCQ on Respiratory System

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