Chapter 20 -Lymphatic System
Which of the following is not a lymphoid tissue/organ? Bone marrow Tonsils Spleen Peyer's patches
Bone marrow
True or False Lymph arrives to the lymph nodes via efferent lymphatic vessels.
False
Which of the following is a role of lymph nodes? They return lymph to circulation. They produce lymph. They filter lymph. They produce red blood cells.
They filter lymph.
Which of the following lymphoid tissues/organs does not contain reticular connective tissue? Thymus Spleen Lymph nodes Tonsils
Thymus
What is the main function of the lymphatic system?
To return leaked fluid and plasma proteins that escape from the bloodstream to the blood.
The thymus functions strictly in maturation of T cells.
True
Which part of the spleen is the site of immune function?
White pulp
Peyer's patches are located: along the colon in the spleen along the small intestine in the liver
along the small intestine.
Lymph is most similar to
blood plasma
Which of the following is NOT a part of the lymphatic system? blood vessels lymphatic vessels lymph lymph nodes
blood vessels
Lymphatic collecting vessels are most closely associated with
capillary beds
What is the role of dendritic cells in lymphoid tissue?
capture antigens and bring them back to lymph nodes
Where are Peyer's patches located? large intestine proximal portion of the small intestine appendix distal portion of the small intestine
distal portion of the small intestine
Which of the following is NOT a lymphatic cell? dendritic cell reticular cell eosinophil macrophage
eosinophil
Which of the following is NOT a lymphoid cell? macrophage reticular cell dendritic cell eosinophil
eosinophil
The filtration of lymph and immune system activation are the two basic functions of the
lymph nodes
The first lymphoid organ to appear in development is (are) the: appendix tonsils thymus lymph nodes
lymph nodes
What is/are the principal lymphoid organ(s) in the body? lymph nodes the thymus the spleen tonsils
lymph nodes
Which of the following is NOT a part of the MALT? tonsils appendix lymph nodes Peyer's patches
lymph nodes
Which of the following are considered the primary immune system cells? lymphocytes macrophages plasma cells dendritic cells
lymphocytes
Within buboes, bacteria are directly attacked by
macrophages
The ________ is (are) the most likely to become infected. pharyngeal tonsil palatine tonsils lingual tonsil tubal tonsil
palatine tonsils
Which of the following lymphoid cells secrete antibodies?
plasma cells
What is the role of the B lymphocytes (B cells) in lymphoid tissue?
produce plasma cells that secrete antibodies
What type of tissue is commonly found in all lymphoid organs and tissues (except the thymus)?
reticular connective tissue
Lymphatic vessels
return tissue fluid to the bloodstream.
Lymph from what regions of the body is drained into the right lymphatic duct?
right upper limb, right side of the head and thorax
Which lymphoid organ provides a site for lymphocyte proliferation and immune surveillance and response and provides blood-cleansing functions?
spleen
Lymph from the right leg ultimately is delivered to which duct in the thoracic region?
thoracic duct
Which of the following delivers lymph into the junction of the internal jugular vein and the subclavian vein?
thoracic duct
Which lymphoid organ serves as the site where T lymphocytes become immunocompetent T cells? spleen tonsils thymus gland thyroid gland
thymus gland
Which of the following is/are the simplest lymphoid organ(s)? thymus gland lymph nodes spleen tonsils
tonsils
Lymph nodes are surrounded by a capsule from which connective tissue strands extend inward to divide the node into compartments. What is the name of these strands
trabeculae
Once collected, lymph is returned to
venous circulation
