the immune system

1) The purpose of the immune system is to:

• Help germs invade your body

• Fight off sickness

• Make your nose run

• Give you diarrhea

To be "immuned" means that:

• that you are infected

• that you are bald

• that you are more likely to get sick

• that you are protected against a specific disease

When someone's immune system

overreacts to something harmless it's called:

• overeacticus maximus

• an allergy

• a sneeze

• the measles

The (a)  

system protects your body from sickness and germs.

Tags

NGSS.MS-LS1-3

Why do we get fevers?

• The warmer temperature of your body make it difficult for pathogens to reproduce.

• Fevers occur when the body is too cold.
• Fevers are caused by eating spicy food.
• Fevers are a sign of aging.

How does your stomach protect you from getting sick?

• The stomach protects you by producing acid that kills pathogens.

• The stomach produces enzymes that enhance digestion.
• The stomach filters toxins from the bloodstream.
• The stomach absorbs nutrients to prevent illness.

How does your skin destroy pathogens?

• The skin absorbs pathogens to eliminate them.
• The skin produces heat to kill pathogens.
• The skin destroys pathogens through oil and sweat that contains chemicals to kill pathogens.

• The skin secretes hormones to neutralize pathogens.

What makes up the first line of defense in the immune system?

• Lymph nodes
• Antibodies
• White blood cells
• Skin and breathing passages

What is the job of the B-cell?

• To transport oxygen in the blood.
• To regulate blood sugar levels.
• To digest food in the stomach.
• The job of the B-cell is to produce antibodies to destroy the pathogen.

What is a pathogen?

• A pathogen is a healthy microorganism.
• A pathogen is a type of antibiotic.
• A pathogen is an organism that causes a disease.

• A pathogen is a type of vaccine.