Immune System Part 1

Defends body against disease using white blood cells to maintain homeostasis

• Immune

• Circulatory

• Respiratory

• Cardiovascular

What part of the lymphatic system filters foreign material from blood and destroys old RBCs?

• spleen
• lymph nodes
• thymus 
• lymphatic vessels

Which of the following cells are responsible for fighting diseases? 

• White Blood Cells
• Red Blood Cells

Where do T cells mature?

• blood
• bone marrow
• thymus
• tonsils

Which immune system organ is found in the back of the throat?

• thymus

• spleen

• tonsil

• liver

What do scientists call bacteria and viruses that can make people sick?  

• diseases
• vaccines
• antibodies
• pathogens

Whats the main function of the lymphatic system?

• removes extra fluid from tissues and returns it to the blood stream

• cleans the body

• takes fluid from capillaries

Site of stem cell production and creation of white blood cells

• red marrow

• white marrow

• thymus

• spleen

Trap and remove pathogens and other foreign materials that enter the mouth or nose

• Tonsils and adenoids

• Thymus

• Lymph nodes

• Spleen

The thymus and spleen shrink with age

• True

• False