Which of the following function in immunological surveillance?
B)helper T cells
E)regulatory T cells
The white pulp of the spleen contains large numbers of
A)red blood cells and platelets as well as vast stores of iron.
B)lymphocytes, which initiate immune responses.
C)eosinophils, which engage in immune surveillance.
D)lymphocytes, which act as stationary phagocytes.
E)antibodies that remain in reserve for the next antigen encounter.
The role of the spleen is slightly different from other lymph organs because it
B)produces memory cells.
Chronic or excessive enlargement of lymph nodes, a sign called ________, may occur in response to bacterial or viral infections, endocrine disorders, or cancer.