Question 1

Two-lobed lymphoid organ located posterior to the sternum.

Accepted Answer

A)   cisterna chyli
B)   thymus
C)   MALT
D)   lacteals
E)   crypts

Question 2

Lymphoid tissues that enclose the central arteries of the spleen are collectively called ________.

Accepted Answer

The answer of Lymphoid tissues that enclose the central arteries...

Question 3

________ are structures comprised of endothelial cells separated by flaplike minivalves, which open as fluid accumulates in peripheral tissue.

Accepted Answer

A)   blood capillaries.
B)   lymph nodes.
C)   lymph capillaries.
D)   cisterna chyli.
E)   thoracic ducts.

Question 4

How does the structure and the function of lymph-collecting vessels compare to those of veins? What tunics do they have in common?

Accepted Answer

Lymph-collecting vessels transport fluid...

Question 5

Begins at the cisterna chyli.

Accepted Answer

A)   thymic corpuscle
B)   aggregated lymphoid nodule
C)   thoracic duct
D)   MALT
E)   inguinal lymph node

Question 6

Is it possible for lymphocytes to gain immunocompetence in the thymus of an 82-year-old person?

Accepted Answer

A)   Yes, but the thymus has shifted to the production of B lymphocytes.
B)   Yes, but fewer than in youth.
C)   No, because the thymus has completely degenerated.
D)   No, because all lymphocytes have turned into thymic corpuscles.

Question 7

The thymus is most active during

Accepted Answer

A)   fetal development.
B)   adolescence.
C)   old age.
D)   childhood.

Question 8

Which lymphatic structure drains lymph from the right upper limb?

Accepted Answer

A)   lumbar trunk
B)   thoracic duct
C)   right subclavian duct
D)   cisterna chyli

Question 9

In a histological cross section through an artery, a vein, and a lymphatic vessel, one can recognize the lymphatic vessel because it

Accepted Answer

A)   has the fewest valves.
B)   has the thinnest walls.
C)   has the thickest tunica media.
D)   always lies closest to the artery, which has the thinnest walls.

Question 10

Lymphocyte ________ results in immune cells that have gained the ability to attack specific antigens.

Accepted Answer

The answer of Lymphocyte ________ results in immune cells that...

Question 11

The main function of the lymphatic system is to return excess ________ back into the blood vascular system.

Accepted Answer

The answer of The main function of the lymphatic system...

Question 12

Edema is

Accepted Answer

A)   a form of cancer.
B)   an infection of the lymphatic vessels.
C)   an infection of the lymph nodes.
D)   the accumulation of excess tissue fluid in loose connective tissue.

Question 13

T cells gain immunocompetence in this lymphoid organ.

Accepted Answer

A)   thymus
B)   tonsils
C)   spleen-red pulp
D)   lymph nodes
E)   spleen-white pulp

Question 14

Lymphatic vessels in the ________ collect cerebrospinal and interstitial fluid from the sub-arachnoid space.

Accepted Answer

A)   pia mater
B)   dura mater
C)   dural sinuses
D)   brain

Question 15

Which of the following is not classified as a lymphoid organ?

Accepted Answer

A)   liver
B)   spleen
C)   tonsils
D)   aggregated nodules in the intestine

Question 16

Which of the following recycle(s)  red blood cells and initiates immune responses?

Accepted Answer

A)   tonsils
B)   lymph nodes
C)   MALT
D)   spleen
E)   thymus

Question 17

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

Accepted Answer

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

Question 18

The tonsil located on the posterior surface of the tongue is the ________ tonsil.

Accepted Answer

A)   palatine
B)   pharyngeal
C)   tubal
D)   lingual

Question 19

Use this illustration to answer the following questions.
-Identify the letter indicating inguinal lymph nodes that filter lymph from the lower limbs.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   E

Question 20

The immune system cell type that is preferentially destroyed by the AIDS virus is the

Accepted Answer

A)   B lymphocyte.
B)   cytotoxic T lymphocyte.
C)   helper T lymphocyte.
D)   helper B lymphocyte.

Exam 21: The Lymphatic and Immune Systems

________ are structures comprised of endothelial cells separated by flaplike minivalves, which open as fluid accumulates in peripheral tissue.

Correct AnswerverifiedShow Answer

How does the structure and the function of lymph-collecting vessels compare to those of veins? What tunics do they have in common?

Correct AnswerverifiedLymph-collecting vessels transport fluid...View AnswerShow Answer

Two-lobed lymphoid organ located posterior to the sternum.

Correct AnswerverifiedShow Answer

The thymus is most active during

Correct AnswerverifiedShow Answer

Which lymphatic structure drains lymph from the right upper limb?

Correct AnswerverifiedShow Answer

Which of the following recycle(s) red blood cells and initiates immune responses?

Correct AnswerverifiedShow Answer

Use this illustration to answer the following questions. -Identify the letter indicating inguinal lymph nodes that filter lymph from the lower limbs.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Begins at the cisterna chyli.

Correct AnswerverifiedShow Answer

Which of the following is not classified as a lymphoid organ?

Correct AnswerverifiedShow Answer

The main function of the lymphatic system is to return excess ________ back into the blood vascular system.

Correct AnswerverifiedShow Answer

Edema is

Correct AnswerverifiedShow Answer

T cells gain immunocompetence in this lymphoid organ.

Correct AnswerverifiedShow Answer

The tonsil located on the posterior surface of the tongue is the ________ tonsil.

Correct AnswerverifiedShow Answer

Is it possible for lymphocytes to gain immunocompetence in the thymus of an 82-year-old person?

Correct AnswerverifiedShow Answer

In a histological cross section through an artery, a vein, and a lymphatic vessel, one can recognize the lymphatic vessel because it

Correct AnswerverifiedShow Answer

Lymphatic vessels in the ________ collect cerebrospinal and interstitial fluid from the sub-arachnoid space.

Correct AnswerverifiedShow Answer

The immune system cell type that is preferentially destroyed by the AIDS virus is the

Correct AnswerverifiedShow Answer

Lymphocyte ________ results in immune cells that have gained the ability to attack specific antigens.

Correct AnswerverifiedShow Answer

Lymphoid tissues that enclose the central arteries of the spleen are collectively called ________.

Correct AnswerverifiedShow Answer

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Lymph-collecting vessels transport fluid...
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