Understanding Your Amazing Immune System

What is the primary function of the immune system?

• To produce hormones

• To digest food

• To protect the body from germs

• To circulate blood

Which cells are considered the 'fighters' of the immune system?

• Platelets

• Red blood cells

• Nerve cells

• White blood cells

What role do lymph nodes play in the immune system?

• They store energy

• They filter oxygen

• They produce hormones

• They act as checkpoints for white blood cells

Where is the spleen located?

• In the brain

• Near the stomach

• In the liver

• Near the heart

What is the function of bone marrow in the immune system?

• To filter toxins

• To regulate body temperature

• To store fat

• To produce new blood cells

What is the thymus responsible for?

• Filtering blood

• Producing insulin

• Training T cells

• Storing calcium

How do white blood cells recognize germs?

• By their smell

• By their color

• By their size

• By special markers on their surfaces

What happens to some white blood cells after they defeat germs?

• They leave the body

• They dissolve

• They become memory cells

• They turn into red blood cells

What is immunity?

• The body's ability to digest food

• The body's ability to grow

• The body's ability to remember and quickly fight off germs

• The body's ability to produce energy

Why is a strong immune system important?

• It helps in digestion

• It helps stop germs before they make you sick

• It helps in muscle growth

• It helps in vision