Exam 22: The Lymphatic System and Immunity

Adaptive defenses depend on the activities of

Immunoglobulins,formed of five subunits,that are the first antibodies to be produced in response to infection,are

If the thymus shrank and stopped making thymosins,we would expect to see an immediate decrease in the number of

The cell that dominates the deep cortical region of a lymph node is the ________ cell.

Which of these is not a property of an IgG heavy chain?

A sample of John's blood shows a high level of pyrogens.This would indicate that John

The only antibodies that normally cross the placenta are

Which of these is not a characteristic of AIDS?

Defense of the body against a particular pathogen is provided by

B cells are primarily activated by the activities of

During a primary immune response,the

The term lymphadenopathy refers to

The term ________ refers to the ability to demonstrate an immune response upon exposure to an antigen.

The cells responsible for the production of circulating immunoglobulins are ________ cells.

The immune system is said to exhibit ________ toward those agents that do not stimulate an immune response.

Immunoglobulins that are most abundant and are responsible for resistance against many viruses,bacteria,and bacterial toxins are

Milly has just received a kidney transplant and is taking cyclosporin A.What does this medication do?

The alternative pathway of complement activation is sometimes called the ________ pathway.

Lymphocytes provide an adaptive or specific defense known as the

In a(n)________ either the immune system fails to develop normally or the immune response is blocked.