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Respiratory System Test — 25 Multiple-Choice Questions

Total questions: 28

Worksheet time: 14mins

Name
Class
Date
1.

The main function of the respiratory system is to:

a)

Transport nutrients

b)

Exchange oxygen and carbon dioxide

c)

Produce hormones

d)

Remove solid wastes

2.

The process of breathing in is called:

a)

Expiration

b)

Hyperventilation

c)

Inspiration

d)

Diffusion

3.

The nose is divided into two cavities by the:

a)

Hard palate

b)

Septum

c)

Nasal conchae

d)

Turbinates

4.

The throat, or passageway for air and food, is the:

a)

Larynx

b)

Pharynx

5.

The epiglottis functions to:

a)

Produce mucus

b)

Vibrate to create sound

c)

Protect the airway during swallowing

d)

Trap dust particles

6.

The windpipe is known as the:

a)

Larynx

b)

Trachea

c)

Bronchus

d)

Bronchiole

7.

The voice box is the:

a)

Pharynx

b)

Larynx

c)

Epiglottis

d)

Sinus

8.

The trachea divides into two:

a)

Alveoli

b)

Bronchi

c)

Bronchioles

d)

Pleural sacs

9.

The smallest airways in the lungs are called:

a)

Bronchi

b)

Bronchioles

c)

Alveoli

d)

Capillaries

10.

Gas exchange occurs in the:

a)

Bronchi

b)

Bronchioles

c)

Alveoli

d)

Pleura

11.

The muscle responsible for breathing is the:

a)

Pectoralis major

b)

Intercostals

12.

During inspiration, the diaphragm:

a)

Relaxes and moves up

b)

Contracts and moves down

c)

Remains still

d)

Thickens and narrows

13.

The membrane that encloses the lungs is the:

a)

Pleura

b)

Peritoneum

c)

Pericardium

d)

Synovial membrane

14.

The respiratory center is located in the:

a)

Cerebrum

b)

Cerebellum

c)

Medulla oblongata

d)

Pons

15.

The exchange of gases between the lungs and the bloodstream is called:

a)

Internal respiration

b)

External respiration

c)

Cellular respiration

d)

Pulmonary diffusion

16.

The exchange of gases between the body cells and blood is called:

a)

External respiration

b)

Pulmonary ventilation

c)

Internal respiration

d)

Cellular metabolism

17.

What lines the nose to trap pathogens and particles?

a)

Bronchi

b)

Mucous membranes and cilia

c)

Capillaries

d)

Pleural fluid

18.

The structure that warms and filters air as it enters the body is:

a)

trachea

b)

nasal cavity

c)

bronchi

d)

larynx

19.

A chronic inflammatory disease causing airway narrowing is:

a)

Pneumonia

b)

Asthma

c)

Tuberculosis

d)

Influenza

20.

A respiratory disease caused by a bacterial infection leading to lung damage is:

a)

Asthma

b)

Tuberculosis

c)

Emphysema

d)

Bronchitis

21.

A condition in which the alveoli lose elasticity is:

a)

Emphysema

b)

COPD

c)

Asthma

d)

Pneumonia

22.

What is the term for rapid breathing?

a)

Bradypnea

b)

Dyspnea

c)

Hyperventilation

d)

Apnea

23.

Blue discoloration of the skin due to lack of oxygen is:

a)

Jaundice

b)

Cyanosis

c)

Pleurisy

d)

Edema

24.

Inflammation of the pleura is called:

a)

Pneumonia

b)

Laryngitis

c)

Pleurisy

d)

Bronchitis

25.

Which structure allows oxygen to diffuse into the bloodstream due to its thin, one-cell-thick walls?

a)

Bronchi

b)

Capillaries

c)

Bronchioles

d)

Alveoli

26.
What is the main function of the respiratory system?
a)
to provide oxygen and remove carbon dioxide from the body
b)
to bring oxygen to the body
c)
to break down food and absorb nutrients
d)
to remove oxygen from the body and deliver carbon dioxide
27.
Which is NOT a function of the respiratory system?
a)
it warms the air
b)
it exchanges O2 and CO2
c)
It pumps blood to the organs
d)
it creates sound through the larynx
28.

The organs of the respiratory system work together to do what? (pick 2)

a)

Take carbon dioxide out of blood

b)

Add oxygen to blood

c)

Add glucose to blood

d)

Add water to blood

e)

Take water out of blood