Exam 44: The Circulatory System

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Diffusion is slow over distances of a few millimeters, making it an unsuitable mechanism by which large animals exchange gases and nutrients between the external and internal environments. ​

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(True/False)
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Verified

True

The ____ regulate(s)blood pressure through the release of hormones. ​

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Verified

D

The ____ is a large branched artery that leads to all body regions except the lungs. ​

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C

The inferior vena cava moves blood from the ____. ​

(Multiple Choice)
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When blood returns from the pulmonary circuit, it first enters the ____ chamber of the heart. ​

(Multiple Choice)
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The purpose(s)of two circuits in a closed circulatory system is to ____. ​

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Plasma makes up approximately ____ percent of the total blood volume. ​

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   Figure 44.1  Use the accompanying figure and list of structures below to label the diagram of the human heart.
Figure 44.1
Use the accompanying figure and list of structures below to label the diagram of the human heart.
Premises:
right pulmonary veins
Responses:
I
A
G
Correct Answer:
Verified
Premises:
Responses:
right pulmonary veins
I
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The "lub" heart sound represents ____. ​

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Why have sports governing bodies banned the use of EPO in athletes? ​

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The risk of heart attacks and stroke can be reduced by avoiding conditions that damage the blood vessel endothelium . ​

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When the body experiences stress, the sympathetic division of the autonomic nervous system stimulates the adrenal medulla to release ____. ​

(Multiple Choice)
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    Figure 44.2  Use the accompanying figure to label these important structures of the lymphatic system. Not all choices will be used.
Figure 44.2
Use the accompanying figure to label these important structures of the lymphatic system. Not all choices will be used.
Premises:
lymph vessels
Responses:
C
F
B
Correct Answer:
Verified
Premises:
Responses:
lymph vessels
C
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In the mammalian heart, the systemic and pulmonary circuits ____. ​

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The composition of plasma is not fully known due to its complexity. ​

(True/False)
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   Figure 44.1  Use the accompanying figure and list of structures below to label the diagram of the human heart.
Figure 44.1
Use the accompanying figure and list of structures below to label the diagram of the human heart.
Premises:
septum
Responses:
F
G
J
Correct Answer:
Verified
Premises:
Responses:
septum
F
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    Figure 44.2  Use the accompanying figure to label these important structures of the lymphatic system. Not all choices will be used.
Figure 44.2
Use the accompanying figure to label these important structures of the lymphatic system. Not all choices will be used.
Premises:
spleen
Responses:
F
E
A
Correct Answer:
Verified
Premises:
Responses:
spleen
F
(Matching)
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   Figure 44.1  Use the accompanying figure and list of structures below to label the diagram of the human heart.
Figure 44.1
Use the accompanying figure and list of structures below to label the diagram of the human heart.
Premises:
inferior vena cava
Responses:
H
G
E
Correct Answer:
Verified
Premises:
Responses:
inferior vena cava
H
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The ____ are the most numerous type of leukocyte in a healthy individual. ​

(Multiple Choice)
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The two most abundant ions in plasma are ____. ​

(Multiple Choice)
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