Immune System

Question 1

Small organisms that cause illnesses when they enter the body

Answer 1

pathogens

Question 2

Pathogens can enter the body through

Answer 2

nose, mouth, eyes or cuts in skin

Question 3

signs that our body is fighting off pathogens such as fever, runny nose, cough, or vomiting

Answer 3

symptoms

Question 4

This is the first line of defense against pathogens

Answer 4

skin

Question 5

Produces an oil that has bacteria killing properties

Answer 5

skin

Question 6

Leak fluid into the body tissues

Answer 6

lymph vessels

Question 7

filtered by the lymph nodes before returning to the blood

Answer 7

lymph fluid

Question 8

These filter lymph and fight bacteria and help respond to cancer cells

Answer 8

lymph nodes

Question 9

Located in the neck, armpits and groin

Answer 9

lymph nodes

Question 10

two small organs at the back of the throat that filter out germs and contain white blood cells

Answer 10

tonsils

Question 11

an organ the size of a fist that is located behind your ribs on the left side near your stomach

Answer 11

spleen

Question 12

Removes red blood cells that are too old or damaged and contains white blood cells which are released to fight pathogens

Answer 12

spleen

Question 13

controls how many red blood cells, white blood cells, and clotting platelets are in the body

Answer 13

spleen

Question 14

Found in the center of most bones

Answer 14

bone marrow

Question 15

Produces special cells called stem cells that can grow into red blood cells, white blood cells or platelets

Answer 15

bone marrow

Question 16

located in the upper chest between the lungs

Answer 16

thymus

Question 17

produces special white blood cells called T cells that attack and remember specific germs and makes sure the body doesn’t attack itself

Answer 17

thymus

Question 18

Can you live without your thymus, spleen or tonsils

Answer 18

yes

Question 19

liquid that circulates throughout the body and carries pathogens to lymph nodes where they are destroyed

Answer 19

lymph

Question 20

specialized cells that move through the blood stream and attack pathogens within the body

Answer 20

white blood cells

Question 21

tissue inside of bones that produce red blood cells, white blood cells and platelets

Answer 21

bone marrow

Question 22

blood filters through these where an infection might be detected

Answer 22

spleen or lymph nodes

Question 23

If a germ enters the body through a cut in the skin, platelets will clot and form a

Answer 23

scab

Question 24

when a weakened pathogen or parts of a pathogen are introduced into the body to train the immune system to recognize the pathogen

Answer 24

vaccine

Question 25

a part of a pathogen

Answer 25

antigen

Question 26

produces excess mucus to force pathogens out of the body

Answer 26

runny nose

Question 27

The body elevates its temperature to kill off bacteria or viruses

Answer 27

fever

Question 28

This is a way the body tries to force pathogens out of the lungs

Answer 28

coughing and sneezing

Question 29

When harmful substances enter the digestive system and the contents of the stomach are removed from the body

Answer 29

vomiting

Question 30

A collection of dead white blood cells and dead pathogens from an infection

Answer 30

pus