Question 1

The thymus gland begins to atrophy after puberty.

Accepted Answer

A) True 
 B)False

Question 2

Lymph nodes

Accepted Answer

A)  filter lymph.
B)  contain a network of collagen fibers.
C)  serve as auxiliary exchange surfaces for respiratory gases.
D)  filter blood.
E)  All of the choices are correct.F) B) and C)
G) C) and E)

Question 3

Developmentally,the spleen forms from

Accepted Answer

A)  ectoderm.
B)  mesoderm.
C)  endoderm.
D)  aggregations of lymphatic cells.
E)  MALT.F) None of the above
G) A) and B)

Question 4

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

Question 5

Lymphatic capillaries

Accepted Answer

A)  cannot be discerned structurally from cardiovascular system capillaries.
B)  originate as closed-ended tubes associated with blood capillary networks.
C)  filter lymph.
D)  concentrate lymph prior to passing it to larger lymphatic vessels.
E)  include layers of smooth muscle for peristalsis.F) B) and D)
G) B) and E)

Question 6

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

Question 7

Migration of cancerous cells through the lymphatic system to other regions of the body is called ______________.

Accepted Answer

The answer of Migration of cancerous cells through the lymphatic...

Question 8

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

Question 9

Where do T-lymphocytes develop immunocompetence?

Accepted Answer

A)  Spleen
B)  Red bone marrow
C)  Lymph nodes
D)  Thymus gland
E)  BloodF) A) and B)
G) D) and E)

Question 10

Which is not correct regarding lymphatic nodules?

Accepted Answer

A)  The central portion of a lymphatic nodule is called the germinal center.
B)  The tonsils are clusters of lymphatic nodules.
C)  The cells and matrix of a lymphatic nodule are enclosed within a thick connective tissue capsule.
D)  B-lymphocytes are located at the center of a nodule,whereas T-lymphocytes lie outside the center.
E)  Lymphatic nodules filter and attack antigens.F) A) and B)
G) A) and E)

Question 11

Which is not correct regarding the spleen?

Accepted Answer

A)  It has an outer cortex and inner medulla.
B)  It is divided into sections by capsular extensions called trabeculae.
C)  Its white pulp consists of lymphatic cells.
D)  It stores erythrocytes.
E)  Its blood is supplied by the splenic artery and drained by the splenic vein.F) C) and D)
G) B) and D)

Question 12

With respect to the lymphatic system,what do the letters in the acronym MALT stand for?

Accepted Answer

A)  Membrane-adhering lymphatic T-cells
B)  Mucosa-associated lymphatic tissue
C)  Multiple-antigen lymphocyte target
D)  Multiple-antibody lymphocyte test
E)  None of the choices is correct.F) B) and D)
G) C) and D)

Question 13

A lymphocyte that is fully mature and therefore able to participate in the immune response is said to be ______________.

Accepted Answer

The answer of A lymphocyte that is fully mature and...

Question 14

In which abdominal quadrant is the spleen located?

Accepted Answer

A)  Left upper quadrant
B)  Right upper quadrant
C)  Left lower quadrant
D)  Right lower quadrant
E)  None of these choices is correct.F) B) and D)
G) All of the above

Question 15

Though some lymphocytes are housed in lymphatic organs,most circulate continuously in the bloodstream.

Accepted Answer

A) True 
 B)False

Question 16

-This figure shows a lymph node and its components.Which number is not correctly paired with the indicated feature?

Accepted Answer

A)  2 = afferent lymphatic vessels
B)  4 = efferent lymphatic vessel
C)  5 = hilum
D)  6 = trabeculae
E)  All of the choices are correct.F) A) and C)
G) A) and E)

Question 17

When is the thymus gland most active?

Accepted Answer

A)  From ages 25-45 years
B)  From childhood to puberty
C)  From puberty to adulthood
D)  From ages 45-65 years
E)  From age 65 years until deathF) B) and E)
G) D) and E)

Question 18

The walls of lymphatic capillaries are only one cell thick.

Accepted Answer

A) True 
 B)False

Question 19

Which are components of the lymphatic system?
A: Thyroid gland
B: Spleen
C: Red bone marrow
D: Thymus gland
E: Lymph nodes
F: Tonsils

Accepted Answer

A)  a,b,c,d,e,f
B)  a,b,c,e,f
C)  b,c,e
D)  b,c,d,e,f
E)  b,c,d,eF) A) and E)
G) C) and D)

Question 20

"Booster" shots are required following certain vaccinations because the memory B-lymphocytes produced in response to the initial vaccination don't survive indefinitely.

Accepted Answer

A) True 
 B)False

Exam 24: Lymphatic System

Developmentally,the spleen forms from

Correct AnswerverifiedShow Answer

With respect to the lymphatic system,what do the letters in the acronym MALT stand for?

Correct AnswerverifiedShow Answer

Where do T-lymphocytes develop immunocompetence?

Correct AnswerverifiedShow Answer

A lymphocyte that is fully mature and therefore able to participate in the immune response is said to be ______________.

Correct AnswerverifiedShow Answer

Migration of cancerous cells through the lymphatic system to other regions of the body is called ______________.

Correct AnswerverifiedShow Answer

In which abdominal quadrant is the spleen located?

Correct AnswerverifiedShow Answer

The thymus gland begins to atrophy after puberty.

Correct AnswerverifiedShow Answer

When is the thymus gland most active?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

-This figure shows a lymph node and its components.Which number is not correctly paired with the indicated feature?

Correct AnswerverifiedShow Answer

Lymphatic capillaries

Correct AnswerverifiedShow Answer

Lymph nodes

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The walls of lymphatic capillaries are only one cell thick.

Correct AnswerverifiedShow Answer

Though some lymphocytes are housed in lymphatic organs,most circulate continuously in the bloodstream.

Correct AnswerverifiedShow Answer

Which is not correct regarding the spleen?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which are components of the lymphatic system? A: Thyroid gland B: Spleen C: Red bone marrow D: Thymus gland E: Lymph nodes F: Tonsils

Correct AnswerverifiedShow Answer

"Booster" shots are required following certain vaccinations because the memory B-lymphocytes produced in response to the initial vaccination don't survive indefinitely.

Correct AnswerverifiedShow Answer

Which is not correct regarding lymphatic nodules?

Correct AnswerverifiedShow Answer

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