Question 1

About 3 liters of fluid are lost to the tissue spaces every 24 hours and are returned to the bloodstream as lymph.

Accepted Answer

A) True 
 B)False

Question 2

The cisterna chyli collects lymph from the lumbar trunks draining the upper limbs and from the intestinal trunk draining the digestive organs.

Accepted Answer

A) True 
 B)False

Question 3

Small secondary lymphoid organs, which cluster along lymphatic vessels, are termed ___________.

Accepted Answer

A)   lymphatics
B)   lymph nodes
C)   lymph follicles
D)   lactealsE) A) and B)
F) A) and C)

Question 4

Lymphatic ___________are formed from the union of the largest collecting lymphatic vessels.

Accepted Answer

A)   nodes
B)   ducts
C)   capillaries
D)   trunksE) All of the above
F) B) and D)

Question 5

The thymus is the only lymphoid organ that does NOT___________ .

Accepted Answer

A)   have a cortex and medulla
B)   produce hormones
C)   directly fight antigens
D)   have lymphocytesE) B) and C)
F) All of the above

Question 6

Tonsils have blind-ended structures called ___________that trap bacteria and particulate matter.

Accepted Answer

A)   tonsillar corpuscles
B)   lymphoid follicles
C)   germinal centers
D)   tonsillar cryptsE) A) and B)
F) B) and C)

Question 7

How does the structure of a lymph node allow lymphocytes and macrophages to perform their protective function?

Accepted Answer

Macrophages and lymphocytes are located ...

Question 8

When tissues are inflamed, lymphatic capillaries permit uptake of large particles such as cell debris, pathogens, and cancer cells.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following structures is NOT considered mucosa-associated lymphoid tissue (MALT) ?

Accepted Answer

A)   tonsils
B)   Peyer's patches
C)   appendix
D)   thymusE) None of the above
F) A) and B)

Question 10

Lymph leaves a lymph node via___________ .

Accepted Answer

A)   afferent lymphatic vessels
B)   the subcapsular sinus
C)   the cortical sinus
D)   efferent lymphatic vesselsE) A) and C)
F) A) and D)

Question 11

Antibodies that act against a particular foreign substance are released by___________ .

Accepted Answer

A)   plasma cells
B)   lymph nodes
C)   T lymphocytes
D)   medullary cordsE) C) and D)
F) None of the above

Question 12

Select the correct statement about lymphocytes.

Accepted Answer

A)   The two main types are T cells and macrophages.
B)   T cells are the only form of lymphocyte found in lymphoid tissue.
C)   B cells produce plasma cells, which secrete antibodies into the blood.
D)   T cells are the precursors of B cells.E) All of the above
F) A) and B)

Question 13

Flow of lymph through a lymph node is slowed due to ___________.

Accepted Answer

A)   fewer efferent vessels draining it compared to many afferent vessels feeding it
B)   the presence of lymphocytes and macrophages
C)   mini-valves
D)   the viscous nature of lymphE) B) and C)
F) A) and C)

Question 14

A man involved in a traffic accident is rushed to the emergency room of a hospital with severe internal bleeding. Examination reveals a ruptured spleen. What is the treatment of choice and what is the likely long-term outcome (prognosis)?

Accepted Answer

Supportive care or splenic repair is the...

Question 15

Which of the following statements regarding the thymus is FALSE?

Accepted Answer

A)   It has follicles similar to those in the spleen.
B)   It functions strictly in T lymphocyte maturation.
C)   Its stroma consists of epithelial tissue.
D)   It does not directly fight antigens.E) C) and D)
F) B) and C)

Question 16

Which of the following correctly describes the pathway of lymph?

Accepted Answer

A)   lymphatic ducts to lymphatic capillaries to lymphatic vessels to lymphatic trunks
B)   lymphatic ducts to lymphatic trunks to lymphatic vessels to lymphatic capillaries
C)   lymphatic capillaries to lymphatic vessels to lymphatic trunks to lymphatic ducts
D)   lymphatic vessels to lymphatic trunks to lymphatic ducts to lymphatic capillariesE) A) and B)
F) A) and C)

Question 17

The lymphatic capillaries function to absorb the excess protein-containing interstitial fluid and return it to the bloodstream.

Accepted Answer

A) True 
 B)False

Question 18

What is the special role of the thymus gland?

Accepted Answer

By secreting hormones, the thy...

Question 19

The blood testis barrier is to newly formed sperm cells as the blood thymus barrier is to ___________.

Accepted Answer

A)   mast cells
B)   plasma cells
C)   T lymphocyte precursors
D)   white pulpE) A) and B)
F) B) and C)

Question 20

The thymus is the only lymphoid organ that does not DIRECTLY fight antigens.

Accepted Answer

A) True 
 B)False

Exam 20: The Lymphatic System and Lymphoid Organs and Tissues

Lymphatic ___________are formed from the union of the largest collecting lymphatic vessels.

Correct AnswerverifiedShow Answer

Flow of lymph through a lymph node is slowed due to ___________.

Correct AnswerverifiedShow Answer

The blood testis barrier is to newly formed sperm cells as the blood thymus barrier is to ___________.

Correct AnswerverifiedShow Answer

When tissues are inflamed, lymphatic capillaries permit uptake of large particles such as cell debris, pathogens, and cancer cells.

Correct AnswerverifiedShow Answer

A man involved in a traffic accident is rushed to the emergency room of a hospital with severe internal bleeding. Examination reveals a ruptured spleen. What is the treatment of choice and what is the likely long-term outcome (prognosis)?

Correct AnswerverifiedSupportive care or splenic repair is the...View AnswerShow Answer

Which of the following correctly describes the pathway of lymph?

Correct AnswerverifiedShow Answer

The cisterna chyli collects lymph from the lumbar trunks draining the upper limbs and from the intestinal trunk draining the digestive organs.

Correct AnswerverifiedShow Answer

Which of the following statements regarding the thymus is FALSE?

Correct AnswerverifiedShow Answer

Small secondary lymphoid organs, which cluster along lymphatic vessels, are termed ___________.

Correct AnswerverifiedShow Answer

Antibodies that act against a particular foreign substance are released by___________ .

Correct AnswerverifiedShow Answer

Tonsils have blind-ended structures called ___________that trap bacteria and particulate matter.

Correct AnswerverifiedShow Answer

Which of the following structures is NOT considered mucosa-associated lymphoid tissue (MALT) ?

Correct AnswerverifiedShow Answer

What is the special role of the thymus gland?

Correct AnswerverifiedBy secreting hormones, the thy...View AnswerShow Answer

The thymus is the only lymphoid organ that does not DIRECTLY fight antigens.

Correct AnswerverifiedShow Answer

About 3 liters of fluid are lost to the tissue spaces every 24 hours and are returned to the bloodstream as lymph.

Correct AnswerverifiedShow Answer

How does the structure of a lymph node allow lymphocytes and macrophages to perform their protective function?

Correct AnswerverifiedMacrophages and lymphocytes are located ...View AnswerShow Answer

The thymus is the only lymphoid organ that does NOT___________ .

Correct AnswerverifiedShow Answer

Select the correct statement about lymphocytes.

Correct AnswerverifiedShow Answer

The lymphatic capillaries function to absorb the excess protein-containing interstitial fluid and return it to the bloodstream.

Correct AnswerverifiedShow Answer

Lymph leaves a lymph node via___________ .

Correct AnswerverifiedShow Answer

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Supportive care or splenic repair is the...
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By secreting hormones, the thy...
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Macrophages and lymphocytes are located ...
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