Deck 24: The Lymphatic System

Question 1

The role of the tonsils is to ________.

A) protect the upper respiratory and digestive tracts from infections
B) produce new lymphocytes
C) secrete thymosins
D) filter lymph before it is returned to the venous circulation

Answer 1

A

Question 2

Lymph nodes contain two distinct regions: the inner ________ and the outer ________.

A) medulla; cortex
B) capsule; cortex
C) cortex; medulla
D) cortex; germinal center

Answer 2

A

Question 3

Which tonsils are most commonly removed during a "tonsillectomy" due to childhood tonsillitis?

A) palatine tonsils
B) submandibular tonsils
C) pharyngeal tonsils
D) lingual tonsils

Answer 3

A

Question 4

Functions of the spleen include ________.

A) production of thymosins
B) purification of lymph
C) production of thymosins, initiation of immune responses, and purification of lymph
D) phagocytosis of damaged red blood cells, initiation of immune responses, and iron storage

Question 5

Thymosins ________.

A) facilitate the production of mature T cells
B) phagocytize abnormal red blood cells
C) engulf pathogens
D) defend the body against viral pathogens

Question 6

Which of the following is true of the appendix?

A) The appendix is vestigial and serves no use whatsoever.
B) The appendix is an extension of the last segment of the small intestine.
C) The appendix's main role is absorbing fats.
D) The appendix contains lymphoid nodules similar to tonsils.

Question 7

White and red pulp are functional components of the ________.

A) thymus
B) lymphatic nodules
C) spleen
D) lymph nodes

Question 8

________ lymphatic vessels transport lymph to a lymph node,whereas ________ lymphatic vessels carry lymph away from a lymph node.

A) Ductal; nodular
B) Afferent; efferent
C) Efferent; afferent
D) Nodular; ductal

Question 9

The lymph nodes ________.

A) phagocytize damaged red blood cells
B) are located only in the neck
C) produce thymosins
D) filter lymph before it is returned to the blood

Question 10

Which of the following may occur as a result of removal of the palatine or pharyngeal tonsils?

A) heightened susceptibility to ingested or inhaled pathogens
B) decreased susceptibility to ingested or inhaled pathogens
C) Removal of the tonsils would have no clinical consequences.
D) Susceptibility to ingested or inhaled pathogens would not be affected.

Question 11

A patient visits her doctor for a routine checkup.The doctor observes lymphadenopathy,or swollen lymph nodes in the side of the patient's neck.The patient says,"Those have been swollen for a few months,but I have felt fine that whole time." Indeed there are no other symptoms.What is a likely cause of this problem?

A) The patient is developing a bacterial infection.
B) The patient needs a tonsillectomy.
C) The patient is HIV positive.
D) The patient is recovering from the flu.

Question 12

The ________ system defends the body against infection and disease.

A) urinary
B) cardiovascular
C) lymphatic
D) reproductive

Question 13

Which of the following correctly pairs the lymphatic trunk with the lymphatic duct that drains into it?

A) right bronchomediastinal trunk, thoracic duct
B) left bronchomediastinal trunk, right lymphatic duct
C) intestinal trunk, right lymphatic duct
D) right jugular trunk, thoracic duct

Question 14

You notice that your roommate has swollen lymph nodes.Based on your knowledge of the lymphatic system,what might the clinical significance of this observation be?

A) Swollen lymph nodes may indicate the presence of an infection.
B) Swollen lymph nodes cannot be observed by a physical exam.
C) Swollen lymph nodes may signal the end of an illness.
D) Swollen lymph nodes are not clinically significant.

Question 15

The ________ cover(s)the superior portion of the heart and produces a group of hormones known as ________.

A) spleen; splenogins
B) pancreas; pancreatins
C) inguinal lymph nodes; lymph
D) thymus; thymosins

Question 16

________ are the primary cell type involved in the defense against pathogens.

A) Osteocytes
B) Erythrocytes
C) Lymphocytes
D) Fibroblasts

Question 17

Where would you be most likely to find MALT?

A) in the inguinal region
B) in the lining of the small intestine
C) in the center of a lymph node
D) in the pharynx

Question 18

New lymphocytes are produced in the ________ of a lymph node.

A) cortex
B) medulla
C) germinal center
D) medullary cords

Question 19

The ________ are lymphoid tissues located in and around the pharynx.

A) ducts
B) tonsils
C) lymphatic vessels
D) lymph nodes

Question 20

What is the role of the lymphatic system in the metastasis of cancers?

A) The lymphatic system does not play a role in the prevention or promotion of cancer metastasis.
B) Cells from established tumors enter lymphatic vessels. Eventually, secondary tumors develop in other parts of the body.
C) Cells from established tumors enter lymphatic vessels and are degraded in lymphoid nodules. This prevents the development of tumors in other parts of the body.
D) Cells from established tumors enter lymphatic vessels and are destroyed by lymphocytes in the lymph nodes. This action prevents the development of tumors in other parts of the body.