Immune System: Video Learning Check

What is your body's first line of defense against pathogens (a bacteria, virus, or other microorganism that can cause disease)?

• white blood cells

• liver

• skin

• phagocytes

Which statement is most true about a fever?

• A fever can hurt your bodies ability to fight off infection. Many illness-causing pathogens do best at an increased body temperature. Letting a fever run its course may increase the length and severity of such illnesses as colds and flu.

• A fever has the ability to lower your body's cellular metabolism decreasing the cells' ability to fight off an infection.

• A fever has the ability to increase your body's cellular metabolism decreasing the cells' ability to fight off an infection.

• A fever can help your body fight off infection. Many illness-causing pathogens do best at the body's normal temperature. Letting a fever run its course may reduce the length and severity of such illnesses as colds and flu.

What are the two types of phagocytes?

• macrophages and neutrophils

• apoptosis and plasmolysis

• t-cells and antigens

• mitochondria and ribosomes

This term refers to a large, Y-shaped protein used by the immune system to neutralize pathogens.

• antagonist

• antibody

• antigen

• antithesis

This term refers to a toxin or other foreign substance which causes an immune response in the body.

• antagonist

• antibody

• antigen

• antithesis

Vaccines are made up of dead or weakened pathogens in order to stimulate the production of

• antigens

• antibodies

• antithesis

• antidote

The flu vaccine changes every year because

• its always a brand new virus

• the virus mutates

• to make corporations more money

• all of the above

The temporary passive immunity that babies get from their mothers' breast milk is called

• colloid

• colostrum

• collagen

• creme

This term is referencing when antibodies are given to someone, the “loaned” antibodies help prevent or fight certain infectious diseases. The protection is short-lived, usually lasting only a few weeks or months. But it helps protect right away.

• active immunity

• passive immunity

• innate immunity

• non-specific immunity

Disorders characterized by your immune system attacking healthy cells in your body by mistake

• automatic

• anti-immune

• autoimmune

• anthropological