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Human Body Test 2
Test Description: Unit test based on the circulatory system, respiratory system, digestive system, excretory system, immune system, and endocrine system
Instructions: Answer all questions to get your test result.
1) The function of valves in the human circulatory system is to
A
stimulate the heartbeat.
B
serve as a cushion to prevent friction.
C
accelerate the flow of blood.
D
prevent the backward flow of blood.
2) Air is filtered, warmed, and moistened in the
A
alveoli.
B
bronchioles.
C
lungs.
D
nose.
3) Air is forced into the lungs by the contraction of the
A
alveoli.
B
heart.
C
bronchioles.
D
diaphragm.
4) Which body system acts as a transportation system?
A
respiratory.
B
circulatory.
C
excretory.
D
nervous.
5) In the walls of the heart, there are two thin layers that form a sandwich around a thick layer of muscle called the
A
connective tissue layer.
B
epithelial tissue layer.
C
pericardium.
D
myocardium.
6) Which of the following are the smallest of the blood vessels?
A
capillaries
B
lymphatic cells
C
veins
D
arteries
7) Which of the following blood cells contain hemoglobin?
A
red blood cells
B
white blood cells
C
platelets
D
all of the above
8) The process by which oxygen and carbon dioxide are exchanged between cells, the blood, and air in the lungs is one type of
A
emphysema.
B
cellular respiration.
C
systemic circulation.
D
respiration.
9) What structure serves as a passageway for both air and food?
A
larynx
B
pharynx
C
bronchus
D
trachea
10) Generally speaking, what control breathing?
A
the brain
B
the diaphragm
C
the lungs
D
the heart
*select an answer for all questions
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