Exam 21: The Lymphatic and Immune Systems

Which cell secretes cytokines that will stimulate the proliferation of other types of immune cells?

Lymph capillaries have minivalves which prevent pathogens from entering the lymphatic circulation.

Lymph is propelled through the lymph vessels by the force of the heartbeat.

A germinal center arises from a single activated lymphocyte; how many different kinds of antibodies are secreted by a single germinal center and by the plasma cells it produces?

The lymph trunk that contains chyle and is unpaired is the

B lymphocytes are to ________ as T lymphocytes are to ________.

A person with many enlarged lymph nodes that do not feel tender or sore is most likely to have

Small, bean-shaped organs abundant in the cervical, axillary, and inguinal regions.

Lymphangitis is inflammation of a lymphatic vessel.

The lumbar and intestinal trunks unite at the ________ of the thoracic duct.

In order to activate lymphocytes, bacteria must penetrate the epithelium of tonsils.

In lymph nodes, follicles are always located

Which of the following statements about the right lymph duct is false?

The spleen atrophies during adulthood.

Deep lymphatic collecting vessels of the abdominal cavity travel alongside deep arteries.

Blockage of the ________ would prevent drainage from both the intestinal and lumbar trunks.

The largest type of lymphatic vessel is a lymphatic

Any molecule that induces an immune response from a lymphocyte is called a(n)

The ________ tonsils are the ones most often infected and removed during a tonsillectomy.

One location where lymphoid tissue is found is "in the frequently infected mucous membranes of the digestive, respiratory, urinary, and reproductive tracts." This description refers specifically to