Body Systems

Cells that ingest pathogens are

• plasma cells
• phagocytic cells
• helper T cells
• antibodies

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

• diseases
• vaccines
• antibodies
• 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 B cells produce?

• antigens
• macrophages
• T cells
• antibodies

What do antibodies attach to on the pathogen?

• Anti inflammatory
• Antigens
• Antiseptic
• Antibodies

Proteins produced by B cells and designed to mark antigens to be destroyed, specific to the antigen.

• Antigens
• Active Immunity
• Antibodies
• Antibiotics

First recognizes foreign body and eats it and displays it to the other cells

• Macrophage
• T Cells
• B Cells

What do memory cells do?

• Kills the virus
• Eats the virus
• Patrol the area and make the immune system work faster next time.
• Makes antibodies

What is the first barrier against disease?

• White blood cells
• Red blood cells
• the skin
• leucocytes 

When someone’s immune system overreacts to something harmless it’s called:

• Overreactus maximus

• An allergy

• A sneeze

• The measles