________ are large lymphoid nodules that are located in the walls of the pharynx.
The group of lymphoid stem cells that migrates to the thymus and divides repeatedly produces which type(s)of lymphocytes?
D)T cells and B cells
E)B cells and NK cells
The red pulp of the spleen contains large quantities of
C)red blood cells.
E)fibrous connective tissue.
Lymphatic vessels, which exit the lymph node and carry the lymph toward the venous system, are called
B)afferent lymphatic vessels.
C)efferent lymphatic vessels.