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Respiratory System
Test Description: Respiratory System Review
Instructions: Answer all questions to get your test result.
1) The trachea, alveoli, and bronchi are all part of what system?
A
circulatory
B
excretory
C
respiratory
D
digestive
2) Which of the following is a by-product of respiration?
A
carbon dioxide
B
hydrogen
C
oxygen
D
nitrogen
3) Which part of the respiratory system is involved in exchanging gases with the bloodstream?
A
glottis
B
alveoli
C
trachea
D
bronchi
4) Which of the following is a major organ of the respiratory system?
A
brain
B
lung
C
stomach
D
heart
5) In the respiratory system, which organs are responsible for removing carbon dioxide from the bloodstream?
A
kidneys
B
lungs
C
ovaries
D
tonsils
6) Inside the lungs, gases move into and out of the blood through the:
A
epiglottis.
B
trachea.
C
alveoli.
D
larynx.
7) What gas do animals need to breathe in during respiration?
A
hydrogen
B
carbon dioxide
C
nitrogen
D
oxygen
8) What gas do animals breathe out during respiration?
A
oxygen
B
carbon dioxide
C
hydrogen
D
nitrogen
9) The ______ keeps the heart pumping and the lungs breathing autonomically.
A
liver
B
spinal chord
C
brain
D
trachea
10) The lungs ______ when the diaphragm contracts.
A
push out air
B
decrease in size
C
expand and draw in air
D
contract and expel air
11) The nose, throat, and trachea form a passageway for ______ the body.
A
blood to flow throughout
B
the protection and movement of
C
food to enter and waste to exit
D
air to enter and for waste gases to exit
12) What is the name of the two structures that branch from the trachea leading to the lungs?
A
bronchi
B
alveoli
C
epiglottis
D
larynx
13) The expanding and contracting of the lungs is ______.
A
voluntary
B
essential to plants
C
involuntary
D
needed to breathe under water
14) Lung tissue absorbs oxygen and transfers it to the body through the ______.
A
nerves
B
muscles
C
blood
D
cartilage
15) The lungs expel air when the ______ relaxes.
A
stomach
B
esophagus
C
diaphragm
D
heart
*select an answer for all questions
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