Immunity, Lymphatic and Respiratory System Quiz

The lymphatic system

• removes excess fluid from tissues.

• absorbs lipids from the digestive tract.

• defends the body against microorganisms and other foreign substances.

• All of these are correct.

Neutrophils

• enlarge to become macrophages.

• account for most of the dead cells in pus.

• are usually the last cell type to enter infected tissues.

• are usually located in lymphatic and blood sinuses.

Macrophages

• are large, phagocytic cells that outlive neutrophils.

• develop from mast cells.

• often die after a single phagocytic event.

• have the same function as eosinophils.

• All of these are correct.

Antigens

• are foreign substances introduced into the body.

• are molecules produced by the body.

• stimulate an adaptive immune system response.

• All of these are correct.

B cells

• are processed in the thymus.

• originate in red bone marrow.

• once released into the blood remain in the blood.

• are responsible for cell-mediated immunity.

• All of these are correct.

Helper T cells

• respond to antigens from macrophages.

• respond to cytokines from macrophages.

• stimulate B cells with cytokines.

• All of these are correct.

The type of lymphocyte responsible for the secondary antibody response is the

• memory B cell.

• B cell.

• T cell.

• helper T cell.

The largest percentage of antibodies in the blood are

• IgA.

• IgE.

• IgM.

• IgD.

• IgG.

Antibody-mediated immunity

• works best against intracellular antigens.

• regulates the activity of T cells.

• cannot be transferred from one person to another.

• is responsible for immediate hypersensitivity reactions.

The activation of cytotoxic T cells can result in

• lysis of virus-infected cells.

• production of cytokines.

• production of memory T cells.

• All of these are correct.