Exam 12: Body Defenses

Adipose tissue is located within the hypodermis.

Indicate the characteristics that apply to bacteria and viruses by using the following code: a.bacteria b.viruses c.bacteria and viruses -Self-sustaining, single-celled organisms

Debris trapped on the sticky mucus lining the respiratory airway is most often cleared away by the alveolar macrophages.

The ____________________ theory proposes that a diversity of lymphocytes is produced during development, each preprogrammed to synthesize antibody against only one of an almost limitless variety of antigens.

Match the defense molecule with the correct characteristic. a.lactoferrin b.glucocorticoids c.histamine d.pyrogens e.opsonins f.complement g.antibodies h.interferon -Potent anti-inflammatory drug(s)

Peyer's patches are located in the kidney.

Match the antibody type with the correct characteristic. a.IgA b.IgM c.IgG d.IgD e.IgE -Most abundant immunoglobulin in the blood

What type of cells do natural killer cells destroy?

The secondary immune response can be longer and more powerful than the primary immune response.

Indicate which type of T cell is being described by writing the appropriate letter in the blank using the following answer code: a.cytotoxic T cells b.helper T cells c.suppressor T cells -Believed to play a role in tolerance

Indicate which type of T cell is being described by writing the appropriate letter in the blank using the following answer code: a.cytotoxic T cells b.helper T cells c.suppressor T cells -Suppress the activity of B-cells, T-cells, NK cells, and dendritic cells

The formation of memory cells against a particular disease-causing microorganism can only occur after the person actually has the disease.

Which of the following is not secreted by helper T cells?

Chemicals other than antibodies secreted by lymphocytes are collectively known as

Viruses

Which kind of white blood cells secretes chemicals that destroy parasitic worms?

The molecules that can cause the body to produce antibodies are called

Diapedesis refers to the chemical attraction of phagocytes to areas of injury, inflammation, or bacterial invasion.

Leukocytes

Hives result from an allergy-induced histamine release.