Exam 14: Lymphatic System and Immunity

Name the cells that are primarily responsible for immunity.

What is the cytolytic substance released by NK cells that lyse the cell membranes of infected or cancerous cells?

What situation will result in increased formation of lymph?

What part of a lymph node do blood vessels enter and exit?

Helper T cells "help" activate other immune cells by releasing substances called __________.

What is the function of T lymphocytes?

What are the most active phagocytic cells in circulating blood?

What classes of antibodies are involved in activation of complement?

Some lymphocyte precursors become B cells after being processed within the __________. Others become T cells after being processed within the __________.

What factor leads to the formation of lymph?

During an immune response, some of the cells in a B cell clone will differentiate into __________ cells which, in turn, produce antibodies.

A newborn infant may have some immune defense because of the presence of IgA antibodies in its blood. What is the source of these antibodies?

The activation of what type of immune cell requires that an antigen be "presented" to it by an antigen-presenting cell?

What accounts for the swelling that occurs with inflammation?

In an autoimmune disease, what is targeted by the autoantibodies?

Name the two collecting ducts that drain lymphatic trunks.

During the primary immune response, B cells give rise to plasma cells.

The thymus is located in the mediastinum behind the sternum.

What type of cell is targeted by the human immunodeficiency virus (HIV)?

During an immune response, what cell types are able to directly bind or interact with an intact antigen?