The Immune System

Question 1

What is the function of the immune system?

Answer 1

Is to destroy any germs that invade the body.

Question 2

What is the immune system made up of…?

Answer 2

White blood cells
Antibodies
Lymph nodes
Spleen

Question 3

What is usually the first to spot, when germs-bacteria or viruses enter the body?

Answer 3

White blood cells called a macrophage. The macrophage eats it and quickly travels to a nearby lymph node or the spleen, which house other blood cells.

Question 4

What are the two types of white blood cells?

Answer 4

T-cells and B-cells

Question 5

What does the T-Cells do?

Answer 5

They find out what germ looks like from the macrophage and go immediately to attack the germ.

Question 6

What do the B-cells do?

Answer 6

They don’t kill the germs directly like the other white blood cells. They make a weapon called antibody that is made to fit perfectly into the invading germs.

Question 7

What do the antibodies do?

Answer 7

They are released into the bloodstream and eventually coat the germ, preventing it from harming the body. This makes if easier for the T-cells to attack and kill the germ.

Question 8

What does the skin do?

Answer 8

It is the first thing to defend against the invading organisms. It provides a waterproof barrier that protects the body from infection and injury.