Exam 28: The Lymphatic and Immune Systems

A(n) ____ is any factor that causes the formation of cancer.

In which nonspecific body defense do blood vessels dilate, bringing more blood to the area, which in turn brings phagocytic white blood cells to the area to attack the pathogen, proteins to replace injured tissues, and clotting factors to stop any bleeding?

Which of the following are signs or symptoms of chronic fatigue syndrome?

The fluid that exists between cells, called _______ fluid, is destined to become lymph.

White blood cells called ________ engulf and destroy pathogens and unwanted debris in the body. Delete this space

Elisa has just been informed that she has stage II breast cancer. The physician has explained what this means, but Elisa is upset and confused. She asks you if her cancer is serious. Which of the following is your best response?

Which of the following bind to antigens on cells and attack them directly?

Cytokines known as ________ assist in regulation of the immune response by increasing B cell production and stimulating red bone marrow to produce more white blood cells.

A foreign substance in the body is called a(n) ________.

A(n) ________ is the presence of a pathogen in or on the body.

Which activated T cells increase phagocytosis and antibody formation?

T cells respond to antigens by secreting cytokines called ________, which increase T cell production and directly kill cells that have antigens.

Which of the following does not describe a secondary immune response?

Which of the following cells mainly target cancer cells?

In blood, ________ acts as a chemical barrier and blocks viruses from infecting cells.

When an area of the body becomes injured or infected with a pathogen, ________ can result, causing blood vessels in the injured area to dilate and become leaky.

The nonspecific body defense in which neutrophils and monocytes can leave the bloodstream to attack pathogens in other tissues is ____.

In a(n) ________ disease, the body begins to attack its own antigens.

A(n) ________ is a disease-causing agent such as a bacterium, virus, toxin, fungus, or protozoan.

Which of the following describes the thymus?