Immune System Review

Front

What is a phagocyte?

Back

A type of white blood cell that destroys pathogens by engulfing and breaking them down.

Front

True or false: Sneezes and coughs help your body to get rid of pathogens.

Back

True

Front

How does the body protect itself if it gets a cut?

Back

It clots the blood and forms a scab.

Front

What color blood cells fight pathogens?

Back

White.

Front

What is the body's first line of defense against infection by foreign organisms?

Back

The skin.

Front

What are pathogens?

Back

Microorganisms that can cause disease, such as bacteria and viruses.

Front

What role do antibodies play in the immune system?

Back

They are proteins produced by B-cells that help identify and neutralize pathogens.

Front

What is the function of lymph nodes?

Back

They filter lymph fluid and help the body fight infections.

Front

What is an antigen?

Back

A substance that triggers an immune response, often found on the surface of pathogens.

Front

What is the difference between active and passive immunity?

Back

Active immunity is developed through exposure to pathogens, while passive immunity is acquired from another source, like maternal antibodies.