Immune System Review Living Environment Class

What is the goal of the immune system?

• To digest food
• To get nutrients for the body
• To eliminate pathogens and maintain homeostasis
• To regulate emotions

How many layers does the immune system have?

• 1
• 2
• 3
• 4

Select the parts of the body that are a part of the immune system?

• Skin
• White blood cells
• Eyes
• T-cells and B-cells
• Fingers

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

• It curls up into a ball
• It tells us to put a bandaid on
• It bleeds
• It clots the blood and forms a scab

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

• true
• false

The second line of defense is called...

What color blood cells fight pathogens?

• Pink
• Blue
• White
• Red

What two things can happen during the inflammatory response?

• Blood vessels widen
• The whole body gets bigger
• The body gets cold
• A fever may occur
• The body slows down

The third line of defense is called...

Lympocytes (white blood cells) have two types. They are...

• A-cells
• B-cells
• T-cells
• C-cells
• L-cells