Respiratory system
1. Which of the following is a function of the respiratory system?
A) gas exchange
B) absorption of nutrients
C) transport of oxygen
D) structural support
2. The respiratory system is made up of the trachea, the lungs,
and the:
A) Liver
B) Diaphragm
C) Esophagus
D) Pancreas
3. When you breathe in air, you bring oxygen into your lungs and
blow out:
A) Carbon dioxide
B) Carbon monoxide
C) Oxygen
D) Hydrogen
4. When you inhale, your lungs:
A) Inflate
C) Deflate
B) Turn purple
D) Do a dance
5. What is the name of the tiny air sacs in your lungs?
A) Bronchioles
B) Ravioli
C) Alveoli
D) Bronx
6. _________ is not good for your lungs.
A) Exercising
B) Singing
C) Smoking
D) Yelling
7. Smoking may damage the respiratory system because deposits
from the smoke can
A) interfere with ciliary action in the trachea
B) trigger the release of antigens by the alveoli
C) block the transmission of impulses that regulate breathing
D) lower blood pressure in the mucous membranes of the
bronchioles
8. Which statement best describes the human respiratory system?
A) It is composed of a network of moist passageways that
permit air to flow from the external environment to the lungs.
B) Each cell of the human body is in direct contact with the
external environment, and gas exchange occurs by diffusion
C) The external body surface is kept moist to allow for gas
exchange.
D) Gases diffuse across membranes on both the external
and internal surfaces of the body.
9. On the image shown, what is the bronchi?
A) letter A
C) letter C
B) letter B
D) letter D
10. On the image, what is the pleural cavity?
A) letter C
B) letter AD
C) letter DE
D) letter BD
11. AE is the:
A) inferior lobe
B) upper edge of the heart
C) diaphragm
D) esophagus
12. Humans breathe more rapidly during exercise than before it
because during exercise the blood contains
A) an increased level of oxygen
B) a decreased number of red blood cells
C) an increased level of carbon dioxide
D) a decreased amount of hemoglobin
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