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WorksheetsRespiratory Structures
Total questions: 20
Worksheet time: 12mins
Name
Class
Date
1.
Place where air enters the body; warms, moistens, and filters incoming air.
a)
lungs
b)
mouth
c)
bronchioles
d)
nasal cavity/nose
2.
Main organ of the respiratory system.
a)
lungs
b)
trachea
c)
larynx
d)
bronchioles
3.
Smaller branches of the bronchi inside the lungs.
a)
alveoli
b)
bronchioles
c)
larynx
d)
mouth
4.
Main muscle that controls breathing by changing pressure in the chest cavity when it contracts or relaxes.
a)
mouth
b)
pharynx
c)
diaphragm
d)
alveoli
5.
Flap that closes over the trachea when swallowing to keep food from “going down the wrong pipe”; remains open when breathing.
a)
alveoli
b)
epiglottis
c)
larynx
d)
pharynx
6.
Windpipe; tube leading into the chest cavity.
a)
pharynx
b)
trachea
c)
bronchi
d)
diaphragm
7.
“Grape-like”, Tiny, thin walled sacs where oxygen and carbon dioxide are exchanged.
a)
alveoli
b)
epiglottis
c)
nasal cavity
d)
bronchioles
8.
Branches of the trachea that lead to each lung.
a)
bronchi
b)
pharynx
c)
bronchioles
d)
alveoli
9.
“Voice box”; makes sounds as air passes through vocal cords.
a)
trachea
b)
bronchi
c)
mouth
d)
larynx
10.
When you breathe, your lungs take in ___ and remove ___.
a)
air/oxygen
b)
oxygen/carbon dioxide
c)
carbon dioxide/waste
d)
waste/air
11.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
12.
The drawing in of breath; inhalation.
a)
Inspiration
b)
Expiration
13.
Breathing out; exhalation of breath.
a)
Inspiration
b)
Expiration
14.
What is the site of gas exchange?
a)
alveoli
b)
nose
c)
lung
d)
bronchi
15.
A cavity within a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities.
a)
Sinus
b)
Nose
c)
Pharynx
d)
Larynx
16.
Which part of the Respiratory System plays a major role in speech?
a)
nose
b)
pharynx
c)
larynx
d)
trachea
17.
The two main branches from the trachea (one to each lung)
a)
bronchi
b)
alveoli
c)
capillaries
d)
bronchioles
18.
known as the voice box
a)
windpipe
b)
larynx
c)
pharynx
d)
epiglottis
19.
After air moves through the pharynx it continues downward. The _____, or windpipe, directs the air into 2 separate branches or tubes.
a)
mucus
b)
trachea
c)
larynx
d)
epiglottis
20.
Which body function is made possible by the fibrous bands stretched across the larynx?
a)
swallowing
b)
breathing
c)
diffusion
d)
speech
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