The fibrous capsule of lymph nodes contains strands called __________ that divide the node into compartments
The relatively common autoimmune disease in which the thyroid gland produces excessive amounts of thyroxine is called:
With immediate hypersensitivy, the antibody class that binds to mast cells and basophils that trigger the release of histamine and other chemicals is:
substances is NOT typically perceived as an antigen:
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:
Excess accumulations of fluid, which impair the exchange of materials within the tissues, is called
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:
Systemic (bodywide) acute allergic response caused by allergens that directly enter the blood, as with certain bee stings or spider bites, is called __________.
Allergic contact dermatitis following skin contact with poison ivy would normally lead to:
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 __________.
The lymph organ that programs T cells and functions at peak levels only during youth is the
The process by which neutrophils squeeze through capillary walls is called ______
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.
Which lymphoid tissues trap and remove bacteria entering the throat:
Which one of the following is NOT one of the antibody classes:
The clumping of foreign cells, a type of antigen-antibody reaction, is called ___
Which of these lymphoid organs is found along the left side of the abdominal cavity:
The lymph tissues found within the walls of the small intestine are called:
Which one of the following is NOT one of the four most common indicators of the inflammatory response:
Which one of the following is NOT one of the nonspecific body defenses:
Antigen presentation is essential for the activation and clonal selection of
Lymph from the left arm would return to the heart through the:
Which one of the following is NOT an autoimmune disease:
Immune sera are used for all of the following EXCEPT:
Vaccines are NOT for:
The role of the __________ in the lymphatic system is to remove worn-out blood cells and return some of the products to the liver.
Troublesome small molecules or incomplete antigens that may mount an attack that is harmful rather than protective are called __________.
When B cells encounter antigens and produce antibodies against them, we exhibit
The process by which WBCs and phagocytes migrate to an area experiencing acute inflammation is called __________.
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 __________.
Lymph exits the lymph node via the __________ vessels
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:
The body's temperature-regulating "thermostat" that can be reset upward in response to pyrogens is located in the:
Which lymphatic organ's major job is to destroy worn-out red blood cells and return some of the products to the liver:
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:
A tropical disease that results when parasitic worms clog the lymphatic vessels is called
The binding of antibodies to specific sites on bacterial exotoxins or viruses is called
Compared to the nonspecific chemicals that cover body surfaces and mucous membranes, the specific body defense system is:
Which one of the following is NOT true of lymph nodes:
The have valves similar to those found in veins
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:
The study of immunity is called:
The binding of complement proteins to certain sugar or proteins on a foreign cell's surface is called
Which one of the following is NOT a type of immunosuppressive therapy given after surgery to prevent rejection of a graft:
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 __________.
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 __________.
Antibodies constitute an important part of blood proteins and are also referred to as
Which one of the following is NOT a type of lymphoid organ:
The body's first line of defense against the invasion of disease-causing microorganisms is:
Skin and mucous membranes