SCI 335 Week 13 Quiz 1

SCI 335 Week 13 Quiz 1 | Wilmington University

Week 13: Test: Chapters 14 

Question 1

The lymph nodes of the axillary region receive lymph mainly from the 

·         thoracic viscera. 

·         abdominal viscera.  

·         arm and mammary gland.  

·         scalp and face.

Question 2

Lymph is ______ ______ that has entered a lymphatic capillary.

·         interstitial fluid

·         tissue fluid

·         tissue fluid or interstitial fluid

Question 3

The thymus tends to increase in size after puberty.  

·         True  

·         False

Question 4

The spleen  

·         contains numerous phagocytic cells.  

·         is the largest lymphatic organ. 

·         contains nodules similar to lymphatic nodules.  

·         All of these are correct.

 Question 5

Lymph nodes occur in groups throughout the body except in the  

·         mesentery.  

·         lungs. 

·         inguinal connective tissue. 

·         central nervous system.

Question 6

The structure of a lymph node can be described as  

·         being divided into compartments that contain masses of lymphocytes and macrophages.  

·         afferent vessels circulating lymph into the node on its convex surface.  

·         efferent vessels circulating lymph out of the node at its hilum.  

·         All of these are correct.

Question 7

Lymphatic capillaries are thin-walled, closed-ended tubes. 

·         True  

·         False

Question 8

The thymus is located within the mediastinum behind the sternum. 

·         True  

·         False

Question 9

Blood vessels converge and join lymph nodes through an indented region called the  

·         hilium.  

·         hilex.  

·         hilum.  

·         hyoid.

Question 10

The major function of a lymph node is  

·         filtration of cellular debris.  

·         filtration of foreign particles. 

·         All of these are correct.  

·         production of lymphocytes.

Question 11

Tissue fluid is ______ and lymph is ______.

forced out of blood plasma and generally lacking in proteins; absorbed into lymph capillaries and rich in proteins and foreign particles  

·         generally rich in proteins; rich in proteins and foreign particles 

·         forced out of blood plasma; absorbed into blood capillaries 

·         forced out of lymph vessels; absorbed into lymph vessels

Question 12

Injections of gamma globulin are sometimes given to provide  

·         artificially acquired active immunity. 

·         naturally acquired active immunity. 

·         artificially acquired passive immunity. 

·         naturally acquired passive immunity.

Question 13

A newborn may have some defense against digestive and respiratory disturbances because of IgA obtained from its mother's  

·         intestine. 

·         placenta.   

·         milk.  

·         blood.

Question 14

A substance that can stimulate a primary immune response but is unable to produce the symptoms of a disease is a(n) ______.

·         vaccine

·         vaccine

Question 15

The formation of lymph increases as a result of  

·         increasing osmotic pressure in tissue fluid. 

·         decreasing volume of tissue fluid.    

·         increasing osmotic pressure in blood capillaries.  

·         decreasing protein concentration in tissue fluid.

Question 16

The foreign, or "non-self" substances that trigger immune responses are called ______.

·         antigens

·         antigens

Question 17

Low-grade fever is an effective defense for short periods of time because it is thought  

·         to increase iron in the blood.  

·         the pyrogens destroy the pathogens.  

·         an increase in temperature slows the growth of bacteria.  

·         to slow the attack of phagocytes.

Question 18

Plasma cells function to  

·         increase the volume of the blood plasma.    

·         produce antibody molecules.  

·         directly attack antigens.  

·         produce interferon.

Question 19

Which of the following is an autoimmune disease?  

·         insulin-dependent diabetes mellitus    

·         All of these are correct.  

·         juvenile rheumatoid arthritis

·         multiple sclerosis 

Question 20

Foreign particles that are injected into the skin are likely to enter the lymphatic system  

·         not at all, because lymphatic valves prevent this.  

·         not at all, because the skin lacks lymphatic capillaries.    

·         rapidly. 

·         slowly.