Lymphatic system review

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Questions from lymphatic system

The fibrous capsule of lymph nodes contains strands called __________ that divide the node into compartments

Trabecullae

The relatively common autoimmune disease in which the thyroid gland produces excessive amounts of thyroxine is called:

Grave's disease

With immediate hypersensitivy, the antibody class that binds to mast cells and basophils that trigger the release of histamine and other chemicals is:

IgE

substances is NOT typically perceived as an antigen:

Self-antigens

Regardless of whether it matures into a B cell or a T cell, a lymphocyte that is capable of responding to a specific antigen by binding to it is said to be:

Immunocompetent

Excess accumulations of fluid, which impair the exchange of materials within the tissues, is called

Edema

Musoca-associated lymphatic tissue (MALT) includes:

Tonsils and Peyer's patches

The inflammatory process begins with release of chemicals, which do all of the following EXCEPT:

Stimulate release of lysozyme

Which one of the following is NOT a method by which antibodies inactivate antigens:

Chemotaxis

Systemic (bodywide) acute allergic response caused by allergens that directly enter the blood, as with certain bee stings or spider bites, is called __________.

Anaphalylactic shock

Allergic contact dermatitis following skin contact with poison ivy would normally lead to:

Delayed hypersentivity

Which one of the following is NOT true of the constant (C) regions of antibodies

They form an antigen-binding site

Lymph fluid and some plasma proteins originate (escape) from the __________.

Blood plasma

The lymph organ that programs T cells and functions at peak levels only during youth is the

Thymus

The process by which neutrophils squeeze through capillary walls is called ______

Diapedesis

Tissues invaded by viruses, which attempt to replicate themselves by taking over cellular machinery, secrete small proteins called __________ to protect nearby cells and hinder further multiplication of the viruses.

Interferon

Which lymphoid tissues trap and remove bacteria entering the throat:

Tonsils

Which one of the following is NOT one of the antibody classes:

IgB

The clumping of foreign cells, a type of antigen-antibody reaction, is called ___

Agglutination

Which of these lymphoid organs is found along the left side of the abdominal cavity:

Spleen

The lymph tissues found within the walls of the small intestine are called:

Peyer's patches

Which one of the following is NOT one of the four most common indicators of the inflammatory response:

Fever

Which one of the following is NOT one of the nonspecific body defenses:

Antibody production

Antigen presentation is essential for the activation and clonal selection of

T Cells

Lymph from the left arm would return to the heart through the:

Thoracic duct

Which one of the following is NOT an autoimmune disease:

AIDS

Immune sera are used for all of the following EXCEPT:

Tuberculosis

Vaccines are NOT for:

Snake bites

The role of the __________ in the lymphatic system is to remove worn-out blood cells and return some of the products to the liver.

Spleen

Troublesome small molecules or incomplete antigens that may mount an attack that is harmful rather than protective are called __________.

Haptens

When B cells encounter antigens and produce antibodies against them, we exhibit

Active immunity

The process by which WBCs and phagocytes migrate to an area experiencing acute inflammation is called __________.

Chemotaxis

One effect of complement fixation that causes the cell membranes of foreign cells to become sticky so that they are easier to phagocytize is called __________.

Opsonization

Lymph exits the lymph node via the __________ vessels

Efferent lymphatic

An isograft is a tissue graft donated by

An identical twin

The specific antibody class that has the ability to cross the placental barrier and provide immunity to the fetus is:

IgG

The body's temperature-regulating "thermostat" that can be reset upward in response to pyrogens is located in the:

Hypothalamus

Which lymphatic organ's major job is to destroy worn-out red blood cells and return some of the products to the liver:

Spleen

The specific foreign substances that an individual's immune system has the ability to recognize and resist is determined by:

Individual genetic makeup

The fluid that is forced out of the capillary beds by hydrostatic and osmotic pressures and into the tissue spaces is called:

Lymph

A tropical disease that results when parasitic worms clog the lymphatic vessels is called

Elephantiasis

The binding of antibodies to specific sites on bacterial exotoxins or viruses is called

Neutralization

Compared to the nonspecific chemicals that cover body surfaces and mucous membranes, the specific body defense system is:

Slower

Which one of the following is NOT true of lymph nodes:

The have valves similar to those found in veins

Lymph flows:

Toward the heart only

Which one of the following CANNOT be said about the history of immunity:

scientists of the mid-1900s discovered the viral origin of AIDS

The specific type of acquired immunity that a fetus obtains from maternal antibodies that cross the placenta is called:

Naturally Acquired passive immunity

The process by which antibodies bind to specific sites on bacterial exotoxins (toxic chemicals secreted by bacteria) to block their harmful effects is called:

Neutralization

The study of immunity is called:

Immunology

The binding of complement proteins to certain sugar or proteins on a foreign cell's surface is called

Complement fixation

Which one of the following is NOT a type of immunosuppressive therapy given after surgery to prevent rejection of a graft:

Gamma globulin

Fever has the effect of doing all of the following EXCEPT

Stimulating complement fixation

Harmful or disease-causing microorganisms from which nonspecific defenses protect the body are called __________.

Pathogens

IgA

Is mainly found in mucus and secretions such as tears and saliva

AIDS cripples the immune system by interfering with the activity of cells called __________.

Helper T Cells

Which one of the following is NOT a mechanism that aids lymph return:

The pumping action of the heart

Which one of the following is NOT true of macrophages:

They circulate continuously throughout the body

Killer T cells, which kill virus-invaded body cells, are also called ________

Cytotoxic T cells

What specific type of acquired immunity do vaccines provide:

Artificially acquired active immunity

When an antigen binds to B cell surface receptors, it becomes sensitized (activated) and undergoes __________.

Clonal selection

Antibodies constitute an important part of blood proteins and are also referred to as

Immunoglobulins

Which one of the following is NOT a type of lymphoid organ:

Appendix

The body's first line of defense against the invasion of disease-causing microorganisms is:

Skin and mucous membranes

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