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BIO202_MH_V3
Topic 4: Lymphatic System
Started on Friday, October 22, 2021, 3:31 PM
State Finished
Completed on Friday, October 22,
... [Show More] 2021, 3:57 PM
Time taken 26 mins
Grade 40.00 out of 40.00 (100%)
Question 1
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Lymph nodes are surrounded by a dense connective tissue called
Select one:
a. cortex.
b. capsule.
c. reticulum.
d. trabeculum.
e. basement membrane.
Question 2
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Which of the following statements accurately describes the thymus gland?
Select one:
a. The thymus gland lacks a capsule.
b. The thymus gland contains many reticular fibers.
c. The thymus gland decreases in size after age 60.
d. Lymphocytes are found only in the medulla of the thymus gland.
e. The thymus increases in size with aging.
Question 3
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All of the following are components of lymph, except
Select one:
a. water.
b. ions.
c. nutrients.
d. hormones.
e. red blood cells.
Question 4
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Lacteals are
Select one:
a. a type of lymphocyte.
b. a nonspecific defense.
c. lymphatic vessels in the lining of the small intestine.
d. the sinuses inside a lymph node.
e. germinal centers.
Question 5
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The only structures that filter lymph is/are the
Select one:
a. tonsils.
b. spleen.
c. lymph nodes.
d. thymus.
Question 6
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Describe the wall of lymphatic capillaries.
Select one:
a. Thin-walled, with tightly joined squamous cells
b. Thin-walled, with tightly joined cuboidal cells
c. Thick-walled, with overlapping squamous cells
d. Thick-walled, with tightly joined squamous cells
e. Thin-walled, with overlapping squamous cells
Question 7
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The palatine tonsils
Select one:
a. interfere with breathing when enlarged.
b. are located at the junction of the oral cavity and pharynx.
c. are located superior to the palate.
d. are really lymph nodes in disguise.
e. are located in the nasopharynx.
Question 8
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Lymph movement is assisted by
Select one:a. contraction of skeletal muscle.
b. contraction of smooth muscle in lymph vessel.
c. pressure changes in the thorax during respiration.
d. compression of lymphatic vessels.
e. All of these choices are correct.
Question 9
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The thymus is where ____ mature and become functional immune cells.
Select one:
a. pre-T cells
b. pre-B cells
c. macrophages
d. null cells
e. C cells.
Question 10
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The spleen
Select one:
a. filters damaged red blood cells from the blood.
b. changes undifferentiated lymphocytes into competent lymphocytes.c. is necessary for life. It can't be removed without causing death.
d. produces several different hormones with unknown function.
e. has additional digestive functions.
Question 11
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Peyer patches are lymphatic nodules found in the
Select one:
a. lymph nodes.
b. spleen and tonsils.
c. appendix and tonsils.
d. small intestine and appendix.
Question 12
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Mucosal associated lymphatic tissues (MALT) are:
Select one:
a. aggregates of macrophages located in the intestines.
b. clusters of splenocytes located in the lamina propria of mucous membranes.
c. clumps of mucous lining the lumen of the gastrointestinal tract.
d. aggregates of lymphatic tissue scattered throughout the lamina propria of mucous
membranes.
Question 13Correct
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The lymphatic system plays a role in maintaining fluid balance within the body by
Select one:
a. adding lymph to GI tract secretions.
b. returning interstitial fluid to the plasma.
c. transporting lymph from tissues to the liver.
d. carrying excess fluid to the kidneys to be excreted.
e. actively absorbing fluid from the blood.
Question 14
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Germinal centers are the sites of
Select one:
a. increased blood flow to the lymph nodes.
b. fluid production.
c. increased flow of lymph from infected tissues.
d. entrance of lymph into lymph nodes.
e. proliferation of lymphocytes in the lymph nodes.
Question 15
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Tonsils
Select one:
a. increase in size in adults.
b. are located in both the oral and abdominal cavities.
c. provide protection against bacteria entering the oral and nasal cavities.
d. contain red pulp and white pulp.
e. are not functional in children.
Question 16
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Bacteria and debris are actively removed from the lymph by _____ in the sinuses of lymph
nodes.
Select one:
a. trabecular cells
b. germinal cells
c. macrophages.
d. lymphocytes
e. plasma cells
Question 17
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Which of the following is NOT a function of the lymphatic system?
Select one:
a. Defending from infection caused by microorganisms and other foreign substances.
b. Aiding in erythropoiesis of red blood cells.
c. Maintaining fluid balance by returning excess interstitial fluid to the blood.
d. Absorbing and transporting lipids from the digestive tract.
Question 18
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Lymphatic tissue contains an interlaced network of reticular fibers that functions to
Select one:
a. produce lymphocytes.
b. produce capsules around lymph nodes.
c. attack microorganisms.
d. line the walls of lymphatic vessels.
e. trap microorganisms.
Question 19
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The lymphatic system is involved in
Select one:
a. lipid absorption from the digestive tract.
b. transporting lymph from the intestines to the liver.
c. maintenance of pH in the tissues.
d. production of erythrocytes.
e. protein metabolism.
Question 20
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The lymphatic system differs from the cardiovascular system in that
Select one:
a. the lymphatic system only carries fluid away from tissues.
b. the lymphatic vessels have their own "pump" to assist flow.
c. lymph capillaries do not contain any fluid.
d. lymph capillaries allow free movement of fluid in and out of the capillaries.
e. lymph circulates fluids and cardiovascular does not. [Show Less]