Body Defenses--Anat & Phys

The nonspecific defense system is the ______ defense system

• adaptive

• innate

Where do T cells mature within your body?

• spleen

• thymus gland

• thyroid gland

• bone marrow

What is present in tears which serves as an antibacterial agent?

• mucous

• pepsin

• HCl

• lysozyme

When cells of your body become damaged, as part of the inflammatory response, they will release

• histamine

• lysozyme

• interferons

• T cells

Why can fevers be good for your body?

• Growth of bacteria and viruses slows with the increased temperature.

• There is reduced iron and zinc (held onto by your liver) in the blood stream, so viruses and bacteria can't spread as effectively.

• Phagocytic cells attack more vigorously with the increased temperatures.

• All of the above

Which cell type (as part of your innate defense system) attacks and kills cells which have been infected with viruses or bacteria?

• T cells

• B cells

• phagocytes

• natural killer cells

What is the most common phagocyte in your body?

• natural killer cell

• B cell

• macrophage

• neutrophil

Proteins produced by cells infected with viruses are called

• histamine.

• interferons.

• macrophages.

• antibodies.

Which of the following is NOT part of your second line of innate defenses?

• tears

• gastric juice

• mucous membranes

• fever

The cell-mediated response is controlled by

• helper T cells

• B cells

• plasma cells

• cytotoxic T cells