Question 1

The largest lymphoid organ.

Accepted Answer

A)   tonsils
B)   lymph nodes
C)   aggregated lymphoid nodules
D)   thymus
E)   spleenF) A) and C)
G) B) and C)

Question 2

Figure 21.2
Use this illustration to answer the following questions.
-Identify the letter that indicates lymph nodes that direct lymph fluid to the jugular trunks.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) All of the above
G) B) and D)

Question 3

If lymphatic vessels are surgically removed, the resulting edema is permanent because these vessels cannot regenerate.

Accepted Answer

A) True 
 B)False

Question 4

Lymph capillaries are absent from the central nervous system.

Accepted Answer

A) True 
 B)False

Question 5

Because the appendix is a narrow tube, it traps microorganisms from the digestive tract, and these microorganisms enter its wall and activate memory lymphocytes for long -term immunity. Another immune organ that traps microorganisms is the

Accepted Answer

A)   the spleen.
B)   palatine tonsil.
C)   thymus.
D)   bone marrow.E) C) and D)
F) All of the above

Question 6

The paired lymph trunks that carry lymph from the lower limbs are the

Accepted Answer

A)   lumbar trunks.
B)   iliac trunks.
C)   femoral trunks.
D)   cisterna chyli.E) A) and B)
F) A) and C)

Question 7

Given that a germinal center arises from a single activated lymphocyte, how many different kinds of antibodies are secreted by a single germinal center (and by the plasma cells it produces) ?

Accepted Answer

A)   several dozen
B)   none; T cells do not produce antibodies
C)   one
D)   thousandsE) A) and B)
F) A) and C)

Question 8

Lymph capillaries are open-ended like drinking straws.

Accepted Answer

A) True 
 B)False

Question 9

By secreting hormones, the thymus causes which cells to become immunocompetent?

Accepted Answer

A)   B lymphocytes
B)   macrophages
C)   monocytes
D)   T lymphocytesE) A) and B)
F) B) and C)

Question 10

Patients often complain to their physician of ʺswollen glandsʺ in their neck. What is the proper name of these
ʺglands,ʺ and what is the significance of their swelling?

Accepted Answer

These structures are properly known as l...

Question 11

Blind-end invaginations of tonsil epithelium that trap bacteria and particulate matter.

Accepted Answer

A)   crypts
B)   lacteals
C)   MALT
D)   tonsils
E)   aggregated lymphoid nodulesF) A) and E)
G) C) and E)

Question 12

This organ has a superficial cortex filled with lymphocytes and an inner medulla with few lymphocytes and a sizable number of degenerating epithelial reticular cells.

Accepted Answer

A)   spleen
B)   thymus
C)   tonsil
D)   lymph nodeE) All of the above
F) A) and B)

Question 13

Figure 21.1
Use the diagram above to answer the following questions.
-Identify the letter that indicates the unique arrangement of endothelial cells that make up lymphatic capillaries.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) A) and C)
G) All of the above

Question 14

The thymus is most active during

Accepted Answer

A)   fetal development.
B)   old age.
C)   adolescence.
D)   childhood.E) None of the above
F) All of the above

Question 15

Which of the following statements about the right lymph duct is false?

Accepted Answer

A)   It forms from the union of a jugular, subclavian, and bronchomediastinal trunk.
B)   Not all people have one.
C)   This duct and its tributaries drain the superior right quarter of the body.
D)   It empties into the thoracic duct.E) All of the above
F) A) and B)

Question 16

Which of these statements regarding lymph capillaries is false?

Accepted Answer

A)   They have precapillary sphincters that regulate drainage of lymph from tissues.
B)   They unite with each other to form collecting vessels.
C)   They begin as closed-ended tubes.
D)   They lack barriers to stop cancer cells from entering the lymphatic system.E) A) and B)
F) A) and C)

Exam 21: The Lymphatic and Immune Systems

If lymphatic vessels are surgically removed, the resulting edema is permanent because these vessels cannot regenerate.

Correct Answer
verified

Patients often complain to their physician of ʺswollen glandsʺ in their neck. What is the proper name of these ʺglands,ʺ and what is the significance of their swelling?

Correct Answer
verified
These structures are properly known as l...
View Answer

Blind-end invaginations of tonsil epithelium that trap bacteria and particulate matter.

Correct Answer
verified

Figure 21.2 Use this illustration to answer the following questions. -Identify the letter that indicates lymph nodes that direct lymph fluid to the jugular trunks.

Correct Answer
verified

Given that a germinal center arises from a single activated lymphocyte, how many different kinds of antibodies are secreted by a single germinal center (and by the plasma cells it produces) ?

Correct Answer
verified

By secreting hormones, the thymus causes which cells to become immunocompetent?

Correct Answer
verified

Because the appendix is a narrow tube, it traps microorganisms from the digestive tract, and these microorganisms enter its wall and activate memory lymphocytes for long -term immunity. Another immune organ that traps microorganisms is the

Correct Answer
verified

Lymph capillaries are open-ended like drinking straws.

Correct Answer
verified

The thymus is most active during

Correct Answer
verified

The paired lymph trunks that carry lymph from the lower limbs are the

Correct Answer
verified

Lymph capillaries are absent from the central nervous system.

Correct Answer
verified

Figure 21.1 Use the diagram above to answer the following questions. -Identify the letter that indicates the unique arrangement of endothelial cells that make up lymphatic capillaries.

Correct Answer
verified

Which of these statements regarding lymph capillaries is false?

Correct Answer
verified

The largest lymphoid organ.

Correct Answer
verified

This organ has a superficial cortex filled with lymphocytes and an inner medulla with few lymphocytes and a sizable number of degenerating epithelial reticular cells.

Correct Answer
verified

Which of the following statements about the right lymph duct is false?

Correct Answer
verified

Exam 21: The Lymphatic and Immune Systems

If lymphatic vessels are surgically removed, the resulting edema is permanent because these vessels cannot regenerate.

Correct AnswerverifiedShow Answer

Patients often complain to their physician of ʺswollen glandsʺ in their neck. What is the proper name of these ʺglands,ʺ and what is the significance of their swelling?

Correct AnswerverifiedThese structures are properly known as l...View AnswerShow Answer

Blind-end invaginations of tonsil epithelium that trap bacteria and particulate matter.

Correct AnswerverifiedShow Answer

Figure 21.2 Use this illustration to answer the following questions. -Identify the letter that indicates lymph nodes that direct lymph fluid to the jugular trunks.

Correct AnswerverifiedShow Answer

Given that a germinal center arises from a single activated lymphocyte, how many different kinds of antibodies are secreted by a single germinal center (and by the plasma cells it produces) ?

Correct AnswerverifiedShow Answer

By secreting hormones, the thymus causes which cells to become immunocompetent?

Correct AnswerverifiedShow Answer

Because the appendix is a narrow tube, it traps microorganisms from the digestive tract, and these microorganisms enter its wall and activate memory lymphocytes for long -term immunity. Another immune organ that traps microorganisms is the

Correct AnswerverifiedShow Answer

Lymph capillaries are open-ended like drinking straws.

Correct AnswerverifiedShow Answer

The thymus is most active during

Correct AnswerverifiedShow Answer

The paired lymph trunks that carry lymph from the lower limbs are the

Correct AnswerverifiedShow Answer

Lymph capillaries are absent from the central nervous system.

Correct AnswerverifiedShow Answer

Figure 21.1 Use the diagram above to answer the following questions. -Identify the letter that indicates the unique arrangement of endothelial cells that make up lymphatic capillaries.

Correct AnswerverifiedShow Answer

Which of these statements regarding lymph capillaries is false?

Correct AnswerverifiedShow Answer

The largest lymphoid organ.

Correct AnswerverifiedShow Answer

This organ has a superficial cortex filled with lymphocytes and an inner medulla with few lymphocytes and a sizable number of degenerating epithelial reticular cells.

Correct AnswerverifiedShow Answer

Which of the following statements about the right lymph duct is false?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
These structures are properly known as l...
View Answer

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verified

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