Question | Answer |
These structures filter lymph fluid that is carried in the lymphatic vessels | lymph nodes |
Which of the following cells does not have phagocytic capability? | basophils |
Antibodies use all of the following mechanisms to attack pathogens directly except | cell lysis |
Receiving gamma globulin as a treatment for rabies would be considered | an example of artificial passive immunity |
Natural killer cells function by lysing foreign pathogens | False |
In most cases, when an infection occurs, the accompanying fever is harmful and should be treated with aspirin or ibuprofen immediately. | False |
The HIV virus survives poorly outside the human body. | True |
Lymphatic vessels transport dietary lipids, tissue fluids, plasma proteins, and lymphocytes | True |
Lymphatic capillaries fill | when tissue fluid pressure is high. |
Lymphatic vessels have valves | True |
Which of the following structures is enclosed within a fibrous capsule? | lymph node |
Which of the following is not a function of the spleen? | development site for T lymphocytes |
Which of the following inhibitors of microbial growth is a component of the perspiration on our skin? | lactic acid |
Which type of white blood cell secretes the anticoagulant heparin? | basophil |
The four major signs of an inflammation include all of the following except | odor. |
Histamine, bradykinin, and leukotrienes stimulate vasodilation and increased blood flow. | True |
Which of the following terms means to coat bacteria, making them easier to phagocytize by macrophages and neutrophils? | opsonization |
If you have an immunological memory of a disease, a second exposure to the same pathogen will cause no noticeable illness. | True |
There are five classes of antibodies. Which one can cross the placenta to provide immunological protection for the newborn? | IgG |
A virgin lymphocyte pool is a clone of B cells that have not yet been exposed to the antigens that they are "programmed" to recognize. | False |
B cells that have taken in a large antigen must be stimulated by a helper T cell before they can react to that antigen. | True |
Antibodies do not destroy antigens directly. | True |
The antibody type created during the quicker secondary response is mainly IgG. | True |
Helper T cells are also known as CD8 or T8 cells. | False |
Cytotoxic T cells directly attack and kill all of the following except | Cytotoxic T cells respond to abnormal body cells, not to free bacteria. |
An injection of gamma globulin is an example of which of the following classes of immunity? | Artificial passive immunity is produced by an injection of gamma globulin. |
Epinephrine | Epinephrine, not acetylcholine, dilates bronchioles and increases cardiac output. |
Which of the four classes of hypersensitivity is a cellular immune response, and not a humoral immune response? | Type IV is a cellular immune response. |
The human immunodeficiency virus can be transmitted from person to person by all of the following means except | by donating blood at the Red Cross. |
Outside the body, HIV is easily destroyed by disinfectants such as bleach, Lysol, and rubbing alcohol | True |
Lymph flows primarily because of this force: | contractions of the vessels |
All of the following are functions of the spleen except: | produces bile |
This type of leukocyte produces enzymes that will create hydrogen peroxide to kill bacteria: | neutrophils |
This type of macrophage lines the sinusoids of the liver: | hepatic macrophages |
Which of the following increases vasodilation? | histamine |
When a white blood cell manages to ooze through the gap between two endothelial cells on its way to attack an invader, we say it has exhibited | diapedesis |
Interferons have this function: | stimulate neighboring cells to produce antiviral proteins |
If you were inoculated with hepatitis A vaccine, a population of this type of cell would begin to make the appropriate antibody: | B lymphocytes |
Infected cells of the pancreas would display a foreign antigen fragment on a/an | MHC I |
These cells recognize non-self antigens and produce lymphokines to stimulate the cells that actually make the antibodies: | helper T |
Which of the following attacks a virus-infected cell by secreting perforin? | cytotoxic T |
HIV attaches to the CD-4 membrane protein of these cells: | helper T |