Chapter 22 Quiz: Lymphatic and immunity

Which of the following lymphatic vessels is located in the tissues?

Lymphatic Capillary

How do lymphatic capillaries differ form blood capillaries?

• Lymphatic capillaries do not have a basement membrane.

• Simple squamous epithelial cells of lymphatics overlap with loose attachments.

• Lymphatic capillaries are more permeable than blood capillaries.

• Lymphatic capillary epithelium act as one-way valves preventing movement of fluid back into interstitial spaces.

• All of the choices are ways lymphatic capillaries differ from blood capillaries.

• All of the choices are ways lymphatic capillaries differ from blood capillaries.

Which of the following organs does not contain lymphatic tissue?

Liver

Lymphatic tissue contains an interlaced network of reticular fibers that functions to

Trap Microorganism

In __________ immunity, the body’s reaction to foreign substances is the same each time it is exposed, but in __________ immunity, the body’s reaction to foreign substances is faster and stronger each time it is exposed.

Innate: Adaptive

Which of the following properties distinguishes specific immunity from nonspecific defense?

-Immunity is directed against a particular pathogen.
-The body reacts quickly to a pathogen to which it was previously exposed.
-When re-exposed to a pathogen, there is usually no noticeable signs or symptoms of disease from that pathogen.

Which of the following is not a characteristic of adaptive immunity?

Innate

Indicate whether the label identifies an adaptive or innate form of defense.

Which complement activation pathway occurs when the C3 protein combines with a bacterial cell or virus?

Alternative Pathway

Which of the following causes the protective effect of interferon on neighboring cells?

Production of antiviral Proteins

Interferon

• is produced as a specific response to a specific virus.

• is produced by one cell and is used to prepare nearby cells to fight the infection.

• is able to save the cell that makes it.

• induces production of mRNA in the recipient cell.

• is produced by one cell and is used to prepare nearby cells to fight the infection.

Which of the following is a feature of systemic inflammation?

Fever

Check all that occur during localized inflammation.

-Chemical mediators cause vasodilation.

-Fibrin walls off the infected area.

-Complement attracts phagocytes to the area.

During the inflammatory response, __________ degranulate and release __________.

Multiple Choice

• endothelial cells; cytokine

• endothelial cells; histamine

• endothelial cells; antibodies

• mast cells; cytokine

• mast cells; histamine

Mast Cell and Histamine

Match the antigen type with its description and example;

Foreign Antigen descrption

Introduced from outside of the body

Match the antigen type with its description and example.

Foreign Antigen Example

POllen

Match the antigen type with its description and example.

Self- Antigen Description

Molecules produced by your body

Match the antigen type with its description and example.

Self-Antigen Example

Tumor Recognizing antigens

A molecule that is low in molecular weight and can combine to a larger molecule to cause an allergic reaction is a/an

Hapen

What part of an antibody combines with an antigen?

Variable Region

When a person is exposed to an antigen for the first time, the immune reaction is called the ______ response

Primary

The appearance of protective________antibodies antigens rise fall memory primary is delayed for several days, while B cells multiply and differentiate.

Antibodies

As the plasma cells begin secreting antibody, the antibody concentration begins to

Rise

Eventually the primary response will make an immune——— of the antigen

memory

Cytotoxic T cells:

Lysis of infected cell

Helper T cell

Promote phagocytosis and inflammation

Memory T cell

Provide a secondary response and long lasting immunity

True/ False: There is only one immune system, but its responses often involve components of more than one type of immunity.

True

Select all that are examples of how immunotherapy can help treat diseases.

-Kill tumor cells directly
-Altering immune system function
-Inhibiting the immune system
-Promote inflammation and activate immune cells

True False: In host-versus-graft rejection, the recipient recognizes the donor tissue as foreign and rejects the transplant. In a graft-versus-host rejection, the donor tissue recognizes the recipient’s tissue as foreign and the transplant rejects the recipient, causing destruction of the recipient’s tissue.

True

T/F: Passive immunity generally has longer lasting effects than active immunity.

False

T/F: In passive immunity, the individual does not produce his or her own memory cells.

True

T/F Active immunity can last from a few weeks to a lifetime.

True

T/F If immediate immunity is required, active immunity is preferred.

False

Bacterial cells

have many different epitopes, which each bind to specific antibodies

T/F: Many different antibodies can be made against a single antigen.

True

Structure of antibody

Which of the following is a substance that can pass through the walls of lymphatic capillaries, but normally cannot pass through the walls of blood capillaries?

Proteins

If the genes encoding MHC class II were inactivated in an antigen-presenting cell (APC), which of the following would result?

The APC could not activate helper T cells.