Variety of Life

Your Immune System deals with Pathogens

• Pathogens are micro-organisms that cause disease
• There are 2 differrent white blood cells you need to know about: phagocytes and lymphocytes.

Phagocytes ingest Pathogens

• Phagocytes detect things that are not suppose to be in you body.
• They engulf the pathogens and then digest them.

Lymphocytes Produce Antibodies

• Every pathogen has a unique molecule called antigens on it's surface.
• Lymphocytes produce protiens called antibodies that can stop every pathogens with different antigens by making them.
• They produce quite quickly
• They produce memory cells so if that particular pathogen came again into your then the lymphocytes can kill them again with the same antibodies that they used before.

Vaccinations

• If a new pathogen comes into the body…