Chapter 24 - Immunity and Lymphatic System

In passive immunity, the

body receives antibodies produced by other humans or by an animal.

Histamine increases blood flow and vascular permeability. This would account for all of the following changes that occur during inflammation except

chemotaxis of phagocytes.

Each of the following is a physical barrier to infection except

complement.

Milly has just received a kidney transplant and is taking cyclosporin A to help prevent graft rejection. This medication is one in a class of drugs known as ________ drugs.

immunosuppressive

Martha had a heart transplant. In order to keep her body from rejecting the transplant she takes

immunosuppressive drugs.

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

is running a fever.

An accumulation of lymph in a region where lymphatic drainage has been blocked is called

lymphedema.

Immunity that results from exposure to an antigen in the environment is called ________ immunity.

naturally acquired active

Lymph nodes do all of the following except

remove excess nutrients from the lymph.

In general, lymphocytes

spend most of their time in lymphatic tissue.

Lymphatic tissue is found in the greatest quantity in

the adult spleen.

Leslie has a severe sore throat and the lymph nodes in her neck are swollen. This would indicate that

the lymph nodes contain an increased number of lymphocytes.

T is to ________ as B is to ________.

thymus-dependent; bone marrow-derived

The lymphatic system does all of the following except

transports gases to and away from lymph nodes.

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

T cells.

Lymphatic organs differ from lymphatic tissues in what way?

They are surrounded by a fibrous capsule and lymphatic tissues are not.

The body's innate defenses include all of the following except

antibodies

A substance that provokes an immune response is called an

antigen.

Frank was bitten by a rattlesnake and received anti-venom containing neutralizing antibodies. Frank received ________ immunity and he ________ long-term immunity as a result.

artificially acquired passive immunity; will not have

When the immune response mistakenly targets normal body cells and tissues, a(n) ________ develops.

autoimmune disease

Defense of the body against a particular pathogen is provided by

adaptive immunity.