wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Respiratory System

Total questions: 85

Worksheet time: 51mins

Name
Class
Date
1.

This is a tube about 12 cm long with C-shaped rings of cartilage to keep it open.

a)

Nasal cavity

b)

Trachea

c)

Mouth cavity

d)

Pharynx

2.
Two short tubes that carry air into the lungs
a)
Trachea
b)
Bronchioles
c)
Lungs
d)
Bronchi
3.

Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide.

a)

Pharynx

b)

Diaphragm

c)

Alveoli

d)

Lungs

4.

Lung volume may vary because of

a)

Activity level

b)

All of these

c)

Smoking

d)

Asthma

5.

When the bronchial tubes are irritated and swell, causing excessive coughing,

a)

Bronchitis

b)

Lung cancer

c)

Asthma

d)

Emphysema

6.

Muscular structure that helps expand and contract the lungs, forcing air in and out

a)

Pharynx

b)

Nasal cavity

c)

Alveoli

d)

Diaphragm

7.

This is a tube-like passage used for food, liquid, and air

a)

Larynx

b)

Trachea

c)

Pharynx

d)

Lungs

8.

Passageway that moistens the air and has hairs to trap dust and particles

a)

Nasal cavity

b)

Bronchi

c)

Mouth cavity

d)

Larynx

9.

What is the function of the respiratory system?

a)

Take in O2 only

b)

Remove CO2 only

c)

Take in O2 and remove CO2

d)

Make sugar

10.

This is the airway that has two pairs of vocal cords attached to it

a)

Lungs

b)

Diaphragm

c)

Pharynx

d)

Larynx

11.

Bronchial tubes contract quickly, causing shortness of breath, coughing, and wheezing.

a)

Bronchitis

b)

Emphysema

c)

Lung cancer

d)

Asthma

12.
Alveoli increase the surface area in the lungs to allow...
a)
More nutrients to be absorbed
b)
You to breathe faster
c)
You to breathe slower
d)
More O2 and CO2 to exchange
13.

The organ system that provides the body with oxygen and rids the body of carbon dioxide.

a)

Circulatory System

b)

Trachea

c)

Arteries

d)

Respiratory System

14.

The immune system's response to an ordinarily harmless substance. 

a)

Asthma

b)

Emphysema

c)

Allergies

d)

Lung Cancer

15.

Inflammatory disease that causes the bronchi to become blocked or narrowed (not bronchitis).

a)

Bronchitis

b)

Asthma

c)

Allergies

d)

Emphysema

16.
Disease in which the alveoli are damaged or destroyed. Strongly linked to smoking.
a)
Allergies
b)
Emphysema
c)
Asthma
d)
Pneumonia
17.

Disease in which the tissue of the lungs is destroyed by the growth of a tumor.

a)

Allergies

b)

Emphysema

c)

Asthma

d)

Lung Cancer

18.
Where are your vocal cords located?
a)
Nose
b)
Lungs
c)
Larynx
d)
Alveoli
19.

The upper respiratory system consists of the following divisions:

a)

Nasal cavity

b)

Larynx

c)

Pharynx

d)

Bronchioles

20.

Which part of the pharynx is indicated by the labeled region?

a)

Oral cavity

b)

Nasal cavity

c)

Laryngopharynx

d)

Oropharynx

e)

Nasopharynx

21.

The arrow is pointing to:

a)

False vocal cords

b)

Glottis

c)

True vocal cords

d)

Trachea

22.

Which oily substance is produced by babies to allow their lungs to expand and take their first breath of air?

a)

Emphysema

b)

surfactant

c)

Hypoxia

d)

Cystic fibrosis

23.
What type of blood cells transport oxygen?
a)
Platelets
b)
White blood cells
c)
Red blood cells
24.

What structures help to keep the air that you breathe clean?

a)

cilia

b)

mucous

c)

nose hair 

d)

all of the above

25.
Where is the respiratory zone located?
a)
bronchioles
b)
alveoli
c)
lungs
d)
oral cavity
26.
Which part of the brain controls breathing?
a)
cerebellum
b)
occipital lobe
c)
pons
d)
medulla oblongata
27.

This condition occurs when there is a lack of oxygen, causing the skin and nail beds to turn blue.

a)

cystic fibrosis

b)

Hypoxia

c)

COPD

d)

bronchitis

28.
Identify the diaphragm.
a)
10
b)
8
c)
6
d)
4
29.
What is the primary function of mucus and cilia in the nostrils?
a)
Sound production
b)
Filtration
c)
Temperature Control
d)
Respiration
30.
Where are the sinuses located?
a)
In the front lobe of the brain
b)
In the skull surrounding the nasal cavity
c)
Inside the nares
d)
Under the cheek bones
31.

What structure serves as a passageway for both food and air?

a)

Pharynx

b)

Bronchus

c)

Trachea

d)

Larynx

32.

If your epiglottis were to suddenly stop working, which activity could be life-threatening?

a)

Breathing

b)

Walking

c)

Coughing

d)

Eating

33.
The nostrils, larynx, and trachea are all made primarily of:
a)
Cartilage
b)
Bone
c)
Muscle
d)
Tendons
34.
Your lungs are divided into lobes. How many lobes do you have?
a)
Two
b)
Three
c)
Four 
d)
Five
35.

In the process of breathing, during which stage does the movement of the diaphragm enlarge the thoracic cavity?

a)

Internal respiration

b)

External respiration

c)

Inspiration

d)

Expiration

36.

If a person could not produce surfactant, his/her:

a)

Alveoli would collapse

b)

Bronchi would collapse

c)

Vocal cords could not vibrate

d)

Epiglottis would close

37.

Barbara has asthma and uses an inhaler when she starts to wheeze. The purpose of the device is to:

a)

Dissolve mucus

b)

Contract blood vessels

c)

Liquefy secretions in the lungs

d)

Enlarge the bronchioles

38.

MOST respiratory disorders are caused by:

a)

Infection

b)

Lack of exercise

c)

Heredity

d)

Poor circulation

39.

Mr. Arnot is a heavy smoker with a chronic cough, a bluish tint to his skin, and a barrel chest. He MOST LIKELY suffers from:

a)

Emphysema

b)

Epistaxis

c)

Tuberculosis

d)

Pleurisy

40.

Sarah has a chest X-ray that shows she has tubercles in her lungs. What does that mean?

a)

She had tuberculosis in the past but has recovered.

b)

She has a dormant form of tuberculosis that could become active if her resistance is lowered.

c)

She has an active case of tuberculosis and is being treated with antibiotics.

d)

She has a history of an infection that is similar to tuberculosis and therefore is immune to TB.

41.

Which statement is true about lung cancer?

a)

The prognosis is good.

b)

Treatment includes hormone therapy and blood transfusions.

c)

It is the leading cause of cancer death in men and women.

d)

Secondhand smoke rarely contributes to the development of lung cancer.

42.

Which diagnostic test allows physicians to directly view the lining of the respiratory tract?

a)

CPAP

b)

Bronchoscopy

c)

Pulmonary function tests

d)

Chest x-ray

43.

Which structure divides the oral cavity?

a)

palate

b)

conchae

c)

sinuses

d)

pharynx

e)

larynx

44.

What is the purpose of cilia in the respiratory system?

a)

They trap particles that enter the respiratory system

b)

They sweep particles out of the respiratory system

c)

They prevent infection

d)

They produce mucus

45.

The smallest passageway that takes air to the alveoli

a)

Bronchi

b)

Bronchus

c)

Bronchioles

d)

Alveioli

46.

Which structure is highly vascularized (has a lot of capillaries/blood supply)?

a)

tracheo

b)

bronchi

c)

bronchioles

d)

alveoli

47.

What is the fatty secretion that helps trap gases and moisten the surfaces of the lungs to aid in their inflation and deflation?

a)

pleura

b)

surfactant

c)

bronchus

d)

glottis

48.

Which of the following muscles aids in respiration?

a)

glottis

b)

diaphragm

c)

pleura

d)

surfactant

49.

Normal respiration involves:

a)

the use of intercostal muscles

b)

the use of a muscular diaphragm

c)

the use of intercostal muscles and the diaphragm

d)

something different

50.

The normal oxygen content of inhaled air is approximately:

a)

0.04%

b)

21%

c)

79%

d)

100%

51.

The normal carbon dioxide content of exhaled air is approximately:

a)

0.04%

b)

4%

c)

14%

d)

24%

52.

The exchange of oxygen and carbon dioxide in the alveoli occurs through a process called

a)

active transport

b)

conduction

c)

convection

d)

diffusion

53.

These apply to inhalation:

a)

The diaphragm moves up

b)

The ribs move in

c)

The ribs move out

d)

The diaphragm contracts

e)

This creates lower pressure in the thoracic cavity

54.

These apply to exhalation

a)

Diaphragm relaxes

b)

Pressure increases in thoracic cavity

c)

Pressure is less outside the body

d)

Diaphragm moves down

55.

Which statement is correct?

a)

Increase in volume = increase in pressure

b)

Decrease in volume = increase in pressure

c)

Decrease in volume = decrease in pressure

d)

Increase in volume = decrease in pressure

56.

What causes a change in pressure when we breathe?

a)

Carbon dioxide levels

b)

Oxygen levels

c)

Diaphragm movement

d)

Hypoxia

57.

Pressure moves from high to low.

a)

False

b)

True

58.

Which sequence correctly indicates the branching pattern of the human respiratory system?

a)

trachea -> bronchi -> bronchioles -> alveoli

b)

trachea -> bronchioles -> bronchi -> alveoli

c)

alveoli -> trachea -> bronchioles -> bronchi

d)

alveoli -> bronchioles -> trachea -> bronchi

59.

The patient is having problems breathing. A medical term for this is...

a)

Hemorhagia

b)

Dyspnea

c)

malcarbona

d)

apnea

60.
The root word PNEUMON/O or PULMON/O 
a)
chest
b)
lungs 
c)
ribs 
d)
head
61.

Tachypnea means slow breathing.

a)

True

b)

False, fast breathing

62.

Blood in the chest

a)

hemothorax

b)

thorcotomy

c)

hemocartilage

d)

pneumothorax

63.

Blue skin caused by low oxygen in the blood

a)

cyanosis

b)

epistaxis

c)

rales

d)

cyanuecstasis

64.

hypo-

a)

Less than normal

b)

Large

c)

Below

d)

Swallow

65.

The accumulation of gas (or air) in the pleural space causes the lung to collapse from the outside.

a)

atelectasis

b)

acute pulmonary distress syndrome

c)

pulmonary edema

d)

pneumothorax

66.

Process of increasing the breathing rate by breathing in deeply and rapidly.

a)

respiration

b)

hyperventilation

c)

inspiration

d)

expiration

67.

Lung volume can be measured using lung volume bags, but more accurately a ________ is used.

a)

Meter reading

b)

Spirometer

68.
Volume of air that remains in the lungs after maximum expiration
a)
Residual Volume
b)
Expiratory capacity
69.
Volume of air that can be forcibly inspired after a normal breath
a)
Expiratory Reserve Volume
b)
Inspiratory Reserve Volume
70.
Volume of air forcibly expired after maximum inspiration in one breath
a)
Vital Capacity
b)
Total Lung Capacity
71.

During cellular respiration, what happens to carbon dioxide?

a)

It leaves the alveoli and is exhaled from the lungs

b)

It leaves the bloodstream and enters the alveoli

c)

It leaves the cells and enters the bloodstream

d)

It leaves the alveoli and enters the bloodstream

72.

Which organelle uses oxygen to release energy from food?

a)

nucleus

b)

ribosome

c)

mitochondrion

d)

endoplasmic reticulum

73.

Name the organ labeled #6

a)

alveoli

b)

bronchi

c)

trachea

d)

lungs

74.

What type of cells carry oxygen in the blood?

a)

Erythrocyte

b)

Leukocyte

c)

Enterocyte

d)

Chief cell

75.
Goblet cells secrete 
a)
oil
b)
sweat
c)
mucus
d)
acid
76.

These features increase the surface area of an epithelial surface

a)

desmosomes

b)

flagella

c)

cilia

d)

microvilli

77.

Which of the following does not belong to the respiratory zone functional group?

a)

Alveolar duct

b)

Alveoli

c)

Bronchiole

d)

Respiratory bronchiole

78.

Olfactory cells do not detect odor.

a)

True

b)

False

79.

Trachea: What type of cartilage forms the C-shaped rings?

a)

Hyaline cartilage

b)

Elastic cartilage

c)

Fibrous cartilage

80.

Alveoli contain macrophages.

a)

True

b)

False

81.

Mucus dissolves scent molecules.

a)

True

b)

False

82.

Which law states an inverse relationship between pressure and volume?

a)

Bardot's Law

b)

Boyle's Law

c)

Poisson's Law

d)

Starling's Law

83.

Which part of the respiratory system is responsible for filtering, warming, and humidifying the air we breathe?

a)

Diaphragm

b)

Bronchi

c)

Nasal cavity

d)

Alveoli

84.

What is the main function of cilia in the respiratory tract?

a)

Exchange gases

b)

Contract to aid breathing

c)

Trap and move particles out of the airways

d)

Produce surfactant

85.

Which condition is characterized by inflammation of the bronchi, leading to coughing and mucus production?

a)

Emphysema

b)

Pneumonia

c)

Bronchitis

d)

Asthma