41) Which of the following is
not
a part of MALT?
A) lymphoid tissue in the appendix
B) lymphoid tissue in the tonsils
C) aggregated lymphoid nodules
D) lymphocytes in the spleen
42) Which of the following lymphoid structures have a hilum?
A) tonsils and appendix
B) thymus and aggregated lymphoid nodules
C) spleen and lymph nodes
D) MALT
43) Lymphatic ducts deliver lymph to the cardiovascular system proximal to the
A) external jugular veins.
B) inferior vena cava just below the right atrium.
C) internal jugular and subclavian veins.
D) superior vena cava and azygos vein.
44) In humans, T lymphocytes originate in
A) the spleen.
B) the thymus.
C) the red bone marrow.
D) the lymph nodes.
45) Blockage of the ________ duct would prevent drainage only from the ________ and lumbar trunks.
A) right lymphatic; jugular
B) right lymphatic; subclavian
C) thoracic; axillary
D) thoracic; intestinal
46) In lymph nodes, follicles are always located
A) in the cortex.
B) near the hilum.
C) in the lymph sinuses.
D) in the medullary cords.
47) The lymph organ that lies in the superior part of the thoracic mediastinum is the
A) cervical lymph node.
B) spleen.
C) tonsil.
D) thymus.
48) Which of the following is
not
classified as a lymphoid organ?
A) liver
B) spleen
C) tonsils
D) aggregated nodules in the intestine
49) The thymus is most active during
A) fetal development.
B) adolescence.
C) old age.
D) childhood.
50) The tonsil located on the posterior surface of the tongue is the ________ tonsil.
A) palatine
B) pharyngeal
C) tubal
D) lingual