Multiple Choice Questions
 

1. The lymphatic system is involved in 
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.

2.  The lymphatic system plays a role in maintaining fluid balance within the body by  
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.

3.  Lacteals are  
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.

4.  Which of the following is NOT a function of the lymphatic system?  
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.

5.  What is the purpose of lacteals?  
A.  Drain blood from the spleen.
B.  Absorb fluid from capillary beds.
C.  Absorb lipids from the digestive tract.
D.  Absorb solutes from interstitial spaces.

6.  Lymph containing a high lipid content is called  
A.  chyle.
B.  chyme.
C.  lacteal.
D.  interstitial fluid.

7.  The lymphatic system differs from the cardiovascular system in that  
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.

8.  Lymph capillaries are found in the  
A.  epidermis.
B.  cornea.
C.  bone marrow.
D.  central nervous system.
E.  dermis.

9.  Structurally, lymph vessels are most similar to  
A.  veins.
B.  arteries.
C.  arterioles.
D.  capillaries.
E.  venules.

10.  How do lymphatic capillaries differ form blood capillaries?  
A.  Lymphatic capillaries do not have a basement membrane.
B.  Simple squamous epithelial cells of lymphatics overlap with loose attachments.
C.  Lymphatic capillaries are more permeable than blood capillaries.
D.  Lymphatic capillary epithelium act as one-way valves preventing movement of fluid back into interstitial spaces.
E.  All of the choices are ways lymphatic capillaries differ from blood capillaries.