The Lymphatic System And Immunity

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Question 1
Free
Multiple Choice

The primary function of the lymphatic system is

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A

the transport of hormones.

B

circulation of nutrients and dissolved gases.

C

defending the body against both external and internal threats.

D

the production and distribution of plasma proteins.

E

the production and maturation of leukocytes.

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Question 2
Free
Multiple Choice

The lymphatic system does all of the following except

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A

helps maintain normal blood volume.

B

transports gases to and away from lymph nodes.

C

eliminates variations in the composition of interstitial fluid.

D

transports lipids from the digestive tract.

E

fights infection.

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Question 3
Free
Multiple Choice

The lymphatic system is composed of all of the following except

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A

lymphatic vessels.

B

the venae cavae.

C

the spleen.

D

lymph nodes.

E

lymph.

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Question 4
Free
Multiple Choice

Compared to blood capillaries, lymph capillaries exhibit all of the following except that they

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A

have no basement membrane.

B

have only a tunica interna.

C

have walls of endothelial cells that overlap like shingles.

D

are smaller in diameter.

E

are frequently irregular in shape.

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Question 5
Free
Multiple Choice

Lymph nodes do all of the following except

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A

produce antibodies through B cells.

B

monitor the contents of lymph.

C

remove debris and pathogens from the lymph.

D

accumulate cancer cells.

E

remove excess nutrients from the lymph.

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Question 6
Multiple Choice

All of the following are true of the thymus gland except that it

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A
activates B cells.
B
reaches its greatest relative size during the second year of life.
C
involutes after puberty.
D
produces T cells.
E
lies in the anterior mediastinum.
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Question 7
Multiple Choice

Most of the lymph returns to the venous circulation by way of the

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A
right lymphatic duct.
B
thoracic duct.
C
cisterna chyli.
D
hepatic portal vein.
E
dural sinus.
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Question 8
Multiple Choice

The medulla of a lymph node contains ________ lymphocytes and macrophages.

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A
cytotoxic T
B
medullary
C
NK
D
B
E
cordal
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Question 9
Multiple Choice

________ are large lymphatic nodules that are located in the walls of the pharynx.

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A
Tonsils
B
Peyer's patches
C
Lymph nodes
D
Immune complexes
E
Spleens
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Question 10
Multiple Choice

________ are clusters of lymphatic nodules deep to the epithelial lining of the small intestine.

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A
Tonsils
B
Adenoids
C
Peyer's patches
D
Immune complexes
E
Lymph glands
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Question 11
Multiple Choice

The term lymphadenopathy refers to

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A
a congenital lack or malformation of lymph nodes.
B
a chronic or excessive enlargement of lymph nodes.
C
accumulations of lymph in the tissue space.
D
the lack of lymphocytes in peripheral circulation.
E
increased numbers of circulating lymphocytes.
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Question 12
Multiple Choice

Areas of the spleen that contain large aggregations of lymphocytes are known as

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A
Peyer's patches.
B
adenoids.
C
white pulp.
D
red pulp.
E
lymph nodes.
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Question 13
Multiple Choice

Which class of cells is particularly abundant in the red pulp of the spleen?

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A
T lymphocytes
B
macrophages
C
B lymphocytes
D
neutrophils
E
Natural Killer cells
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Question 14
Multiple Choice

Lymphatic organs differ from lymphatic tissues in what way?

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A
They contain T lymphocytes and lymphatic tissues do not.
B
They are found in the digestive tract and lymphatic tissues are found in the thorax.
C
They are surrounded by a fibrous capsule and lymphatic tissues are not.
D
They cannot produce antibodies, whereas lymphatic tissues can.
E
They occur throughout the body except in the head.
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Question 15
Multiple Choice

T Lymphocytes are produced and stored in all of the following except

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A
the thymus.
B
lymphatic nodules.
C
lymph node organs.
D
the spleen.
E
the brain.
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Question 16
Multiple Choice

Lymphatic capillaries are known for all of the following except

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A
being the starting point of the lymphatic circulation.
B
being the smallest lymphatic vessels.
C
having larger diameters and looser walls than blood capillaries.
D
having shingle-like endothelial cells.
E
allowing nutrient and gas exchange.
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Question 17
Multiple Choice

The merging of ________ forms the right lymphatic duct.

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A
the right jugular, right subclavian, and right bronchomediastinal trunks
B
the right lumbar, right subclavian, and right bronchomediastinal trunks
C
two great vessels
D
the thoracic and mediastinal ducts
E
superior and inferior lymphatic ducts
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Question 18
Multiple Choice

Dividing lymphocytes can be found in the ________ of the lymphatic nodule.

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A
sinus regions
B
germinal center
C
cortical layer
D
capsular space
E
stroma
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Question 19
Multiple Choice

Lymphatic vessels begin in peripheral tissues and ultimately drain into

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A
veins.
B
peripheral capillary beds.
C
arteries.
D
the kidneys.
E
arterioles.
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Question 20
Multiple Choice

Which of the following statements about lymph flow in a node is false?

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A
Lymph enters in an afferent lymphatic.
B
Lymph first enters the subcapsular space.
C
Lymph flows past dendritic cells.
D
The efferent lymphatic exits at the hilum.
E
The afferent lymphatic enters at the hilum.
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