Immune System

Any microorganism that can cause disease

• pathogen

• antigen

• antibody

• virus

This line of defense forms a barrier that stops all "things" from getting into the body or blood

• 1st line defense

• 2nd line defense

• 3rd line defense

This specialized line of defense specifically fights the particular pathogen involved.

• 1st line of defense

• 2nd line of defense

• 3rd line of defense

Which of the following is part of innate immunity?

• Neutrophils
• Cell-Mediated Response
• Inflammation
• Humoral Response

Larry is taking a walk in the park. The pollen in the air makes him sneeze constantly. What line of defense is his immune system exhibiting?

• first line of defense

• second line of defense

• third line of defense

• fourth line of defense

Which of the following is NOT a first line of defense of the non-specific (innate) immune system? These mechanisms prevent pathogens from entering the body.

• skin

• mucous membranes

• fever

• stomach acid

Antibodies are proteins in the blood that identify and neutralise foreign bodies

• True

• False

Antigens are protein markers on toxins or substances that the body considers to be foreign

• true

• false

What is a protective protein produced by the immune system?

• Antibody
• Antibiotic
• Antigen
• Antimicrobial

Cells that ingest pathogens are

• plasma cells

• phagocytic cells/macrophaghes

• helper T cells

• antibodies