Question 1

With increasing age,the lymphatic system becomes unable to transport lymph from body tissues and fat from the gastrointestinal tract.

Accepted Answer

A) True 
 B)False

Question 2

Lymphatic capillaries originate in the

Accepted Answer

A)  central nervous system.
B)  red bone marrow.
C)  yellow bone marrow.
D)  tissue spaces between cells.
E)  cisterna chyli.F) None of the above
G) B) and C)

Question 3

The function of helper T-lymphocytes is to

Accepted Answer

A)  initiate and oversee the immune response.
B)  turn off the immune response once it has been activated.
C)  secrete toxins to kill or disable pathogens.
D)  trigger cell death by disrupting metabolic activities.
E)  All of the choices are correct.F) C) and D)
G) A) and E)

Question 4

The primary goal of the immune response is

Accepted Answer

A)  destruction or inactivation of pathogens and foreign material.
B)  maintenance of the proper ionic balance between lymph and blood.
C)  stimulation of mitotic activity in order to replace cells damaged by infection.
D)  reduction of the number of circulating memory lymphocytes.
E)  removal of antibodies from lymph and lymphatic organs.F) B) and C)
G) None of the above

Question 5

A variety of lymphatic cells are involved in the immune response.Which is not part of the process?

Accepted Answer

A)  Production of antibodies
B)  Direct attack and destruction of foreign or abnormal agents
C)  Replication of antigens
D)  Formation of memory cells
E)  No exceptions; all choices are part of the immune response.F) None of the above
G) D) and E)

Question 6

B-lymphocytes make up the largest population of lymphocytes in the body,about 70-85% of the total number.

Accepted Answer

A) True 
 B)False

Question 7

The pharyngeal tonsils are located

Accepted Answer

A)  along the posterior margins of the tongue.
B)  in the posterior wall of the nasopharynx.
C)  at the base of the palatoglossal arches.
D)  in the posterolateral region of the oral cavity.
E)  lateral to the uvula in the oropharynx.F) B) and C)
G) B) and D)

Question 8

Which area does not contain MALT?

Accepted Answer

A)  Urinary tract
B)  Respiratory tract
C)  Genital tract
D)  Gastrointestinal tract
E)  None of the choices is correct.F) A) and E)
G) B) and D)

Question 9

Which cell type is targeted by the human immunodeficiency virus (HIV) ?

Accepted Answer

A)  Cytotoxic T-lymphocyte
B)  Memory B-lymphocyte
C)  Helper T-lymphocyte
D)  Natural killer cell
E)  Plasma cellF) A) and E)
G) A) and D)

Question 10

Which is not a function of the lymphatic system?

Accepted Answer

A)  Transports dietary lipids
B)  Returns excess interstitial fluid to the bloodstream
C)  Houses and develops lymphocytes
D)  Generates immune responses
E)  No exceptions; all choices are functions of the lymphatic system.F) B) and C)
G) B) and D)

Question 11

Which is not correct regarding B-lymphocytes?

Accepted Answer

A)  They must be activated by helper T-lymphocytes,which present antigens to them.
B)  Activated B-lymphocytes transform into plasma cells,memory B-lymphocytes,or NK cells.
C)  Memory B-lymphocytes may live for months or even years.
D)  B-lymphocytes produce immunoglobulins.
E)  Each B-lymphocyte responds to one particular antigen.F) A) and D)
G) C) and E)

Question 12

A lymphatic capillary that picks up dietary lipids in the small intestine is called a(n)

Accepted Answer

A)  cisterna chyli.
B)  lacteal.
C)  afferent lymphatic vessel.
D)  trabeculum.
E)  efferent lymphatic vessel.F) A) and D)
G) C) and D)

Question 13

Gastrointestinal tract lymph is also called ______________.

Accepted Answer

The answer of Gastrointestinal tract lymph is also called ______________....

Question 14

Which would be the route taken by lymph traveling from lymphatic vessels in the right leg to the bloodstream?

Accepted Answer

A)  Right lumbar trunk - cisterna chyli - thoracic duct - right subclavian vein
B)  Right lumbar trunk - cisterna chyli - thoracic duct - left subclavian vein
C)  Right lumbar trunk - right intestinal trunk - right lymphatic duct - right subclavian vein
D)  Right femoral trunk - right lumbar trunk - right lymphatic duct - superior vena cava
E)  Right femoral trunk - cisterna chyli - thoracic duct - left subclavian veinF) B) and E)
G) A) and E)

Question 15

Which type of lymphocyte produces and secretes antibodies?

Accepted Answer

A)  Memory B-lymphocyte
B)  Memory T-lymphocyte
C)  Natural killer cell
D)  Plasma cell
E)  Cytotoxic T-lymphocyteF) None of the above
G) A) and B)

Question 16

Of the lymphatic trunks,which ones drain lymph from deep thoracic structures?

Accepted Answer

A)  Jugular trunks
B)  Subclavian trunks
C)  Bronchomediastinal trunks
D)  Intestinal trunks
E)  Lumbar trunksF) C) and D)
G) None of the above

Question 17

Because lymphatic vessels have three tunics (intima,media,and externa) and valves,they structurally resemble

Accepted Answer

A)  veins.
B)  arterioles.
C)  venules.
D)  arteries
E)  All of the choices are correct.F) B) and E)
G) A) and B)

Question 18

The walls of lymphatic capillaries are only one cell thick.

Accepted Answer

A) True 
 B)False

Question 19

Tonsils have multiple germinal centers and invaginated outer edges called _______ that help trap material.

Accepted Answer

A)  crypts
B)  trabeculae
C)  sinuses
D)  clefts
E)  fissuresF) A) and E)
G) None of the above

Question 20

Once a helper T-lymphocyte recognizes an antigen,it begins the immune response by secreting chemical signals called

Accepted Answer

A)  antibodies.
B)  immunoglobulins.
C)  memory B-lymphocytes.
D)  memory T-lymphocytes.
E)  cytokines.F) D) and E)
G) A) and E)

Exam 24: Lymphatic System

Of the lymphatic trunks,which ones drain lymph from deep thoracic structures?

Correct AnswerverifiedShow Answer

Once a helper T-lymphocyte recognizes an antigen,it begins the immune response by secreting chemical signals called

Correct AnswerverifiedShow Answer

Which would be the route taken by lymph traveling from lymphatic vessels in the right leg to the bloodstream?

Correct AnswerverifiedShow Answer

Because lymphatic vessels have three tunics (intima,media,and externa) and valves,they structurally resemble

Correct AnswerverifiedShow Answer

Which type of lymphocyte produces and secretes antibodies?

Correct AnswerverifiedShow Answer

Which is not correct regarding B-lymphocytes?

Correct AnswerverifiedShow Answer

Which is not a function of the lymphatic system?

Correct AnswerverifiedShow Answer

Tonsils have multiple germinal centers and invaginated outer edges called _______ that help trap material.

Correct AnswerverifiedShow Answer

Lymphatic capillaries originate in the

Correct AnswerverifiedShow Answer

Which area does not contain MALT?

Correct AnswerverifiedShow Answer

The function of helper T-lymphocytes is to

Correct AnswerverifiedShow Answer

The primary goal of the immune response is

Correct AnswerverifiedShow Answer

A variety of lymphatic cells are involved in the immune response.Which is not part of the process?

Correct AnswerverifiedShow Answer

With increasing age,the lymphatic system becomes unable to transport lymph from body tissues and fat from the gastrointestinal tract.

Correct AnswerverifiedShow Answer

A lymphatic capillary that picks up dietary lipids in the small intestine is called a(n)

Correct AnswerverifiedShow Answer

Gastrointestinal tract lymph is also called ______________.

Correct AnswerverifiedShow Answer

Which cell type is targeted by the human immunodeficiency virus (HIV) ?

Correct AnswerverifiedShow Answer

The walls of lymphatic capillaries are only one cell thick.

Correct AnswerverifiedShow Answer

The pharyngeal tonsils are located

Correct AnswerverifiedShow Answer

B-lymphocytes make up the largest population of lymphocytes in the body,about 70-85% of the total number.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified