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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
serve as a cushion to prevent friction.
B
prevent the backward flow of blood.
C
stimulate the heartbeat.
D
accelerate the flow of blood.
2) Air is filtered, warmed, and moistened in the
A
alveoli.
B
lungs.
C
nose.
D
bronchioles.
3) Air is forced into the lungs by the contraction of the
A
bronchioles.
B
alveoli.
C
heart.
D
diaphragm.
4) Which body system acts as a transportation system?
A
nervous.
B
respiratory.
C
excretory.
D
circulatory.
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
myocardium.
C
epithelial tissue layer.
D
pericardium.
6) Which of the following are the smallest of the blood vessels?
A
capillaries
B
lymphatic cells
C
arteries
D
veins
7) Which of the following blood cells contain hemoglobin?
A
red blood cells
B
all of the above
C
platelets
D
white blood cells
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
respiration.
B
systemic circulation.
C
cellular respiration.
D
emphysema.
9) What structure serves as a passageway for both air and food?
A
larynx
B
bronchus
C
trachea
D
pharynx
10) Generally speaking, what control breathing?
A
the lungs
B
the heart
C
the diaphragm
D
the brain
*select an answer for all questions
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