Immune System

What is the job of the immune system?

• To protect your body from drugs and medicine
• To protect your body from air and water
• To protect your body from pathogens
• To protect your body from itself

Which is NOT considered FIRST line of defense?

• White Blood Cells
• Skin
• Hair
• Mucous Membranes

What are Lymphocytes?

• A type of red blood cell
• A nucleus 
• A type of white blood cell
• Bone Marrow

What are the two types of immune systems?

• Acquired & Adaptive
• Innate & Acquired
• Innate & Autoimmune
• Red & White Blood Cells

What is phagocytosis?

• WBCs
• When cells eat other cells
• When a cell collapses
• When a cell releases nutrients

Which Immunity is involved with remembering specific pathogens?

• Innate Immunity

• Adaptive Immunity

What is an example of Artificial active immunity?

• Vaccination

• Natural infection

What is the difference between Adaptive Immunity and Innate Immunity?

• Innate is non specific and Adaptive is specific

• Innate has several barriers

• Innate uses several lymphocytes while Adaptive uses 2 types

• All of the above

Why does the Adaptive Immune System keep a memory of the pathogens they fight off, but Innate System does not?

• Adaptive immunity is present at birth and needs to keep a memory of these pathogens over time, but Innate immunity is temporary so it does not a memory of pathogens.

• Adaptive immunity is short lived, it keeps a memory of pathogens for future reference, whereas Innate immunity is present at birth so it does not need to keep a memory.

• Innate immunity does not fight off pathogens so it cannot keep a record, while Adaptive immunity only fights off pathogens, therefore needing to keep a memory of them.

What role do mucus and stomach acid have in common?

• Acting as barriers to pathogens

• Stopping particles from being transmitted further into your body

• Fighting off and/or trapping bacteria to prevent infections