Question 1

Lymph

Accepted Answer

A)  is found only when there is a pathological condition that allows it to leak from capillaries.
B)  is excess interstitial fluid.
C)  is filtered by the spleen.
D)  is synthesized by the lymphoid organs.
E)  All of the choices are correct.F) A) and B)
G) A) and D)

Question 2

Which is not a function of the spleen?

Accepted Answer

A)  Serves as blood reservoir
B)  Filters blood
C)  Filters lymph
D)  Recycles aged erythrocytes
E)  Houses lymphocytesF) A) and D)
G) All of the above C

Question 3

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) D) and E)
G) B) and C)

Question 4

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 5

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  False

Question 6

Which is not a type of T-lymphocyte?

Accepted Answer

A)  Helper T-lymphocyte
B)  Cytotoxic T-lymphocyte
C)  Memory T-lymphocyte
D)  Plasma T-lymphocyte
E)  Suppressor T-lymphocyteF) A) and B)
G) A) and C)

Question 7

The spleen is essentially a giant lymph node,since it is encapsulated,has trabeculae,and filters lymph to remove antigens.

Accepted Answer

A) True 
 B)False

Question 8

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) B) and E)
G) A) and D)

Question 9

Helper T-lymphocytes are also known as

Accepted Answer

A)  cytotoxic T-lymphocytes.
B)  CD8+ cells.
C)  CD4+ cells.
D)  T8 cells.
E)  memory T-lymphocytes.F) A) and D)
G) A) and B)

Question 10

Once the immune response has been activated,it can be "turned off" by ___________ T-lymphocytes.

Accepted Answer

The answer of Once the immune response has been activated,it...

Question 11

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) A) and C)
G) A) and D)

Question 12

Which is not drained by the right lymphatic duct?

Accepted Answer

A)  Right side of abdomen
B)  Right side of thorax
C)  Right side of head and neck
D)  Right shoulder
E)  Right armF) D) and E)
G) A) and C)

Question 13

When women with breast cancer undergo surgery to remove the tumor or the entire breast,the axillary lymph nodes are often removed as well.Why?

Accepted Answer

A)  In removing the breast,the blood supply to the nodes is removed and they will inevitably cease to function.
B)  The axillary lymph nodes receive lymph from the breast and may contain cancer cells.
C)  The nerves that supply the axillary lymph nodes are often cut during the breast surgery.
D)  It is impossible to remove the breast without physically damaging the lymph nodes.
E)  With the removal of the breast,there is no further need for lymph drainage and filtering in that part of the body.F) A) and C)
G) C) and D)

Question 14

Which of the lymphatic trunks drain into the cisterna chyli?

Accepted Answer

A)  Intestinal trunks
B)  Lumbar trunks
C)  Intestinal trunks and lumbar trunks
D)  Subclavian trunks and jugular trunks
E)  Bronchomediastinal trunks and intestinal trunksF) A) and D)
G) C) and D)

Question 15

Helper T-lymphocytes primarily contain the CD8 coreceptor.

Accepted Answer

A) True 
 B)False

Question 16

Lymphatic capillaries are held in place by _____________ filaments that attach the endothelial cells to nearby structures.

Accepted Answer

The answer of Lymphatic capillaries are held in place by...

Question 17

Which is not correct regarding the thymus gland?

Accepted Answer

A)  It is a bilobed organ located in the mediastinum.
B)  It is fully encapsulated by connective tissue.
C)  Each thymic lobe is subdivided into lobules.
D)  It reaches its maximum size at puberty,then regresses.
E)  Its thymic corpuscles are the site of T-lymphocyte maturation.F) A) and E)
G) None of the above

Question 18

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) A) and B)
G) A) and C) B

Question 19

Lymphatic capillaries

Accepted Answer

A)  are open at both ends.
B)  are smaller in diameter than blood capillaries.
C)  have wide gaps between endothelial cells.
D)  lack a basement membrane.
E)  are abundant in epithelial tissues.F) All of the above
G) B) and D)

Question 20

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) A) and D)
G) B) and E)

Exam 24: Lymphatic System

Lymph

Correct AnswerverifiedShow Answer

Which is not a function of the spleen?

Correct AnswerverifiedC

Which type of lymphocyte produces and secretes antibodies?

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

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

Correct AnswerverifiedFalse

Which is not a type of T-lymphocyte?

Correct AnswerverifiedShow Answer

The spleen is essentially a giant lymph node,since it is encapsulated,has trabeculae,and filters lymph to remove antigens.

Correct AnswerverifiedShow Answer

Which is not correct regarding B-lymphocytes?

Correct AnswerverifiedShow Answer

Helper T-lymphocytes are also known as

Correct AnswerverifiedShow Answer

Once the immune response has been activated,it can be "turned off" by ___________ T-lymphocytes.

Correct AnswerverifiedShow Answer

The function of helper T-lymphocytes is to

Correct AnswerverifiedShow Answer

Which is not drained by the right lymphatic duct?

Correct AnswerverifiedShow Answer

When women with breast cancer undergo surgery to remove the tumor or the entire breast,the axillary lymph nodes are often removed as well.Why?

Correct AnswerverifiedShow Answer

Which of the lymphatic trunks drain into the cisterna chyli?

Correct AnswerverifiedShow Answer

Helper T-lymphocytes primarily contain the CD8 coreceptor.

Correct AnswerverifiedShow Answer

Lymphatic capillaries are held in place by _____________ filaments that attach the endothelial cells to nearby structures.

Correct AnswerverifiedShow Answer

Which is not correct regarding the thymus gland?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedB

Lymphatic capillaries

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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C

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False

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B

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