Immune System

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

• diseases
• vaccines
• antibodies
• pathogens

The picture below illustrates one internal part of the body’s immune system. What process is illustrated in the picture?  

• a skin cell destroying germs.
• inflammation near an opened wound
• a white blood cell destroying pathogens
• mucus in the lungs destroying pathogens

 Like all other body systems, the immune system helps the body maintain homeostasis.  Which statement best describes how the immune system does this?  

• it protects other organs and tissues from infection and disease
• it breaks down food to provide cells with nutrients
• it gathers information through the senses and controls all other body systems
•  it transports oxygen and carbon dioxide

What do antibodies attach to on the pathogen?

• Anti inflammatory
• Antigens
• Antiseptic
• Antibodies

Pathogens are recognized by their...

• antigens
• antibodies
• killer t-cells
• B-cells

Vaccines work because the immune system saves the information in the:

• memory cells

• effector cells

• leukocytes

• red blood cells

The vaccines trigger the immune system creating specific ______________ for the pathogen.

• antigens

• antibodies

• medicine

• cells

Why do we need a new vaccine for Influenza every year?

• because the virus mutates very quickly

• because the virus is unknown

• because the vaccine works for a short time

• none of the answers

A/an ________ is an injection of a weakened form of a pathogen to help the individual gain immunity from a disease.

• Virus

• Vacuum

• Vaccine

• Antibiotic

Activities or choices that will affect your health.

• lifestyle factors
• biogenetics
• healthy choices
• habits