Immune System

How does the lymph system keep fluid flowing in the right direction?

• One way valves
• One way pumps
• Lymph nodes
• Muscles squeezing the lymph vessels

What are two parts of the innate immune system?

• barriers and phagocytes
• B-cells and mast cells
• antibodies and phagocytes
• T cells and B cells

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

These cells are responsible for making antibodies

• Plasma cells and memory cells
• Killer T Cells
• Helper T Cells
• Macrophages

Enzyme in saliva and tears that kills certain kinds of bacteria. (new)
 

• histamine 
• lysozyme 
• cytokines 
• basophil

Disease-causing microorganism, such as a bacterium or virus.

• pathogen 
• allergen
• toxin
• antigen 

  A substance or part of a substance (living or nonliving) that the immune system recognizes as foreign and activates the immune system and reacts with immune cells or their products, such as antibodies.

• pathogen 
• allergen 
• antigen 
• antibody

What are the 2 basic types of leukocytes?

• phagocytes and lymphocytes 
• white blood cells and red blood cells
• neutrophil and bacteria
• None of the above

What initiates an immune response?

• antibody
• antigen
• histamine
• antibiotic

A condition in which the immune system attacks the body's own tissues.

• immunity
• immunization
• immune system
• autoimmune disorder