Immune System

What are pathogens?

• Cells that transport oxygen

• Illness-causing organisms such as viruses, bacteria, and fungi

• Cells that produce organs

• The fluid part of the blood

What is the role of immune cells?

• To transport oxygen

• To produce blood cells

• To patrol the blood and look for pathogens

• To produce organs

What is plasma?

• A type of white blood cell

• The hollow part of the bones

• The fluid part of the blood

• A type of pathogen

Where do all blood cells start their life?

• In the lungs

• In the bone marrow

• In the liver

• In the heart

What is the primary function of red blood cells?

• To look for pathogens

• To produce organs

• To transport oxygen

• To fight infections

What can result from the bone marrow not producing enough blood cells?

• Blood proliferative disorders

• Immuno-deficiency

• Leukemia

• Allergic rhinitis

What are the cells called that serve as the first line of defense against invaders that make us sick?

• Adaptive immune cells

• Innate immune cells

• Red blood cells

• Bone marrow cells

Where do adaptive immune cells receive their education?

• In the bloodstream

• In the bone marrow

• Near the heart, in the thymus

• In the liver

What is the first step of the quality-control process that immune cells go through during their education?

• Ensuring cells do not respond against the body

• Ensuring each cell is capable of making a response if they encounter their particular invader

• Calling more immune cells to the area of infection

• Removing "self-reactive" cells

What can excessive production of blood cells lead to?

• Anemia

• Leukemia

• Immuno-deficiency

• Asthma